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SeaMonkey Meeting Details


  • Who's taking minutes? -> frg
  • Nominees for Friends of the Fish Tank:
    • aceman for doing a lot of suite patches

Action Items

(who needs to do what that hasn't been recorded in a bug) We should assign people to the open items.


  • There was an enquiry by Mozilla if the Composer standalone product in Bugzilla can be retired. We do not own the product. Most bugs are either old or were probably misfiled and belong to the SeaMonkey Composer component.
    • frg will ask the product owners Fabian and Daniel if we can clean up and ask for removal. Bugs higher than 50000 should be moved to either shared mailnews or SeaMonkey Composer. The older ones can be mostly closed. There are not many bugs left so this can be done manually.


  • New council members frg, rsx11m and ewong were already appointed a few weeks ago. IanN will look into a website update now that the project areas were updated.
  • TODO: Add Adrian Kalla to RelEng team. Overall no change as of today.
  • Planning the future of SeaMonkey with a new infrastructure is in progress.
    • ewong is evaluating the cost and specs for an azure based build system.
    • We need to prepare to move the SeaMonkey website off MoCo infrastructure.
    • Cross compiling macOS builds is now possible for Firefox under Linux.
      • This will be evaluated for the new infrastructure so that we don't need additional macOS builders.
    • We need a jumphost, a buildmaster, a Windows and a Linux slave.
      • A Puppet system for setup and configuration is under evaluation.
      • Costs and if we should do an initial 1 yor 3 year setup are still evaluated.
      • Funding is available.
    • We need to start with a static setup and expand as necessary.
      • Our current infra (excluding the new mac mini and the Win loaner) will be gone by late Q3/early Q4 as Mozilla vacates the SCL3 datacenter.
      • WG9s will do comm-central and comm-beta community builds weekly to see if SeaMonkey still builds on Linux.
      • We have 12 linux64 systems, 7 win32 systems (1 dead), 4 macOS systems (3 dead 1 dying).
      • Only vital components (for Firefox) will be moved to the new MoCo data center.
      • The SeaMonkey builders will be decommissioned/scrapped and not moved to MoCos new data center.
      • ewong has created the following systems:
        • jumphost
        • master
        • 1 Win64 builder
        • 1 Linux64 builder
        • 1 Macstadium host
        • None of which can build properly as there require a lot of changes to the buildbotcustom/config code.
      • ewong is in the process of setting up the necessary parts based on Azure.
        • We have an additional mac mini (from but it is not able to connect properly with the master due to routing issues. (bug 1441001 which has been marked WF due to the fact that 1) it's only going to be a temporary setup, 2) to get this working will require a lot of fiddling on Moco's part and ewong isn't willing to add more complications and burden to Moco's NetOps team.
        • Decision was to forgo connecting the new mini to SCL3 and instead, set up a Moco-financially-backed (maintained by us) infra.
  • Thunderbird has moved its web presence to Thunderbird Net. All builds after ESR52 are done on taskcluster.
    • TB will later migrate off MoCo infrastructure.
  • ewong is trying to include rust dynamically. Mozilla no longer provides rust tooltool packages and a bug needs to be opened for every new version now.


Status of the SeaMonkey Buildbot Master and Tree

  • Doubling effort in getting the infra on Azure up.
  • Various Bugs open for building.
    • We have only one macOS builder on the old infrastructure left which seems to fail frequently now.
    • Linux64 Nightly: bug 1275215 is still open but Linux is building most of the time.
    • Linux64 build: bug 1275218 is still open but Linux is building most of the time.
    • Windows building is done on the loaner.
  • [13th May 2018]
    • Tests have been re-enabled and running but have issues.
      • All tests are Red.
      • All trees: macOS builds turned off to preserve the last builder -3 for releases.
    • [comm-central]:
      • All Platforms: Busted and if they work for a day Mozilla will take care of this.
        • Installer and local build fixes reviewed and pushed after the meeting.
        • Windows builds need to switch to mozilla as topsourcedir. Linux and macOS builds might still might work with comm-central as top but deprecated and untested. Buildbot configuration needs to be adapted for this.
      • Do not expect to use the 2.59 release yet other than for checking if it starts. It is fundamentally broken by Mozilla source and api removals.
        • The installer still works...
      • See bug 1452448 for current comm-central breakages.
    • [comm-beta]:
      • All Platforms: See individual platform.
        • Linux*: Orange bug 1415803
        • macOS: builds turned off to preserve -3.
        • Win32: Installer and local builds busted. We do not plan to fix this for 2.58.
      • Do not use the 2.58 release.
      • Windows builds need to switch to mozilla as topsourcedir. Linux and macOS builds might still might work with comm-central as top but now deprecated and untested. Buildbot configuration needs to be adapted for this.
      • See bug 1452448 for current comm-central breakages.
    • [comm-release]:
      • All Platforms: See individual platform.
        • Linux*: Orange bug 1415803
        • macOS: builds turned off to preserve -3.
        • Win32: Dark Red with purple spots.
        • Do not use any 2.57 release from this repo.
        • comm-release branch will not be fixed for 2.57. Instead use the esr60 source.
      • See bug 1379370 for current 2.53 breakages. Tree is at 2.57 already.
    • [comm-esr60]:
      • All Platforms: See individual platform.
        • Linux*: No automation yet.
        • macOS: No automation yet.
        • Win32: No automation yet.
      • Sidebar, Help and Mail/News are broken because of XUL template removals. See bug 464710.
      • Do not expect to use the 2.57 release yet other than for testing.
      • See bug 1433370 for current 2.57 breakages.
    • [comm-esr52]:
      • All Platforms: See individual platform.
        • Linux*: Orange bug 1415803
        • macOS: builds turned off to preserve -3.
        • Win32: N.N
      • See bug 1313304 for current breakages.
      • Builds from this repo are the only ones fully usable right now.
  • Notes:
  • See RelEng page for the RelEng status history.
    • Bugzilla Flags for 2.59 and 2.57 were requested in bug 1461060.
    • We should remove the aurora flags from bugzilla in the next cycle.

Release Train

  • Gecko 60 / Seamonkey 2.57 is now the ESR branch
    • SeaMonkey 2.57 will be the next major release after 2.49.x EOL.
    • The 2.57 in the current release branch will not be updated. Only the comm-esr60 repo will receive updates from us.
    • Not all patches with l10n-relevant string changes are done for 2.57. frg thinks he has figured out a way to do this using strings from later l10n-central releases (suite directory only). He tried this with a local l10n dir and it turned out ok.
      • IanN will test it later but there is currently no alternative presented.
      • With the preliminary solution no buildbot changes would be needed.
  • 2.49.3 has been released on May the 4th.
    • Updates from older SeaMonkey versions to 2.49.3 are currently not working (including from 2.48 or 2.49.1,.2). This has been announced on the project page.
    • According to the crash stats and support group discussions the release seems to be generally stable.
  • Building 2.49.4 will start soon.
    • ewong tries to fix the update process for the aus3 server. This is broken since 2.48 and should not block the 2.49.4 release.
    • A meta bug for gtk3 compatibility has been created for 2.49.1 and up bug 1367257.
    • The Thunderbird/SeaMonkey branch in mozilla-esr52 was updated to the 52.8.0 release level.
      • bug 1409458 "Privacy Issue: Replying to or forwarding an HTML e-mail with external content" will not be fixed for this release.
      • bug 1406049 is not yet fixed but has a limited audience.
      • bug 1385667 and bug 1394149 fix build issues with gcc 7. We will evaluate if we can backport them to the TB branch in mozilla-esr52.
        • frg did gcc 7 builds and they had serious redraw problems.
    • The 2.49.x releases use branches in hg.
    • When updates are working again the following bugs need to be looked into:
      • bug 1274722 Add %SYSTEM_CAPABILITIES% to the SeaMonkey app.update.url preference.
      • bug 1271761 Add CPU features/detection to update URL.
    • cZ, DOMi and the Lightning extension will again be excluded because of the l10n problem tracked in bug 1231349.
    • We are evaluating doing official Linux and Windows x64 builds for a future 2.49.x release. This will only happen when the new infrastructure is ready.
    • IanN will look into including My and pt-BR locales in a future 2.49.x. frg can create patches based on l10n-release and l10n-central suite but these would need to be manually fixed by the translators and checked into a comm-release branch. We did this with nb-NO in bug 1391174.
  • If it can be made stable a 2.53 Beta might be done later.
    • A release would need l10n translations. The temporary solution for 2.57 would probably not work for this release.
    • frg is currently working to fix the Download Manager.
    • The Bookmarks Manager has been ported from Fx 56 and renamed to Library.
    • comm-release (2.53) Fx 56 should be kept current for testing as long as possible because addons still fully work in this release.
    • When 56 becomes EOL we will decide if we do a branch for further testing and bug fixing.
    • frg marked some bugs as 2.53 "affected" instead of "wontfix" in case we do a release from this branch later.
    • frg maintains a local 2.53 with backported comm-central and mozilla-central fixes in case we want to do a 2.53. If this can be maintained till 52.9 will be seen. He used some already rebased fixes from the Waterfox 56 repo on github for this.
    • Bill posted zip files from frg containing the backported source on his wg9s website for 2.53.
    • IanN thinks we might want to do a 2.53 branch in c-r and m-r so that we can include the backported bugs.
    • Because of general changes in the m-c tree e.g. ChromeUtils.import and other enhancements backporting patches becomes more time consuming.
  • Discussions if we should match minor version numbers with Firefox are still underway. This would need a coordinated change for either c-c or all trees. All minor versions would be changed and the versions would need to be made available in bugzilla. Lightning version calculation needs to be changed. This will be done at a later date and not for 2.49 ESR.
  • Windows x64 releases
    • Unofficial (contributed build) Win64 builds work.

Extensions and Plugins Compatibility Tracking

  • Most extensions are now broken in SeaMonkey 2.54+ because of Mozilla api removals.
    • ChatZilla is broken.
    • DOMi was fixed for 2.55 but has been badly broken by our Mozilla "friends" again recently in 2.56. See bug 1429936.
    • DOMi will no longer work in any Fx58+ version.
    • The devtools can inspect chrome content but this needs to be fixed in SeaMonkey. It works in Thunderbird.
      • DOMi might be retired later when this works. It is currently not built. See also bug 1273222.
    • The addon-SDK has been removed.
    • SMILE has been removed in 2.57.
    • Non bootstrapped addon support has been removed in 2.58+.
    • Support for unpacked extensions has been removed.
    • Overlay support will be removed. Thunderbird tries to build a lightweight solutions for converting existing overlays.
    • Lightning is packed directly into Thunderbird now. This is tracked in bug 1451847 for SeaMonkey.
  • WebExtensions support is tracked in bug 1320556. As of now working on this has not started.
    • This would be needed for a ESR60 based SeaMonkey.
  • Evaluation if some extension functionality should be incorporated will need to be done later.
    • Candidates among others are ChatZilla, SeaTab X2 and Version Number.
      • ChatZilla development seems to have stopped. IanN thinks he can fix it. Thunderbird includes IM now.

Porting this would be another alternative after the mailpane works again.

    • LIghtning is still working in 2.57 and now directly distributed starting with 2.58.
  • Mozilla plans to move the Thunderbird and SeaMonkey add-ons to a new site this year. At the current point in time wo don't have any information about it.
    • The old add-ons website api has been removed in bug 1402064 for Gecko 60 and up.
  • Firefox officially removes non-WebExtension add-ons and full-theme support with Gecko 57 [1].
    • new add-ons other than WebExtensions will no longer be accepted for signing as early as Gecko 53.
    • Adblock Plus and uBlock are both broken in SeaMonkey 2.54+
    • Most XUL add-ons are broken in 2.55+ because of api removals.
    • Extensions using optionsType 2 can no longer be installed starting with Gecko 60. They need to provide an options url only.
    • Thunderbird suggests switching to optionsType 3 and did a fix showing the preferences in the menu list. We need to port the bug for a future release.
    • Isaac Schemm fixed the "AMO Browsing for SeaMonkey" add-on. It can be downloaded from [2].
  • We will evalute the possibility of shipping pdf.js with SeaMonkey in a future release. frg will look into it when he finds some time.

2.x (Last, Current, Next)

  • SeaMonkey Statistics can be viewed at Across all channels we have an approximate ADU of 120k. ADI is about 116,000 on 2.48; about 597,000 on 2.46. Unclear how this translates into installations but around 70.000 users are on the release channel.
  • See Basics page for the usual reminders.
  • Old add-on signing methods has been removed. SeaMonkey and Thunderbird still use them per thread "removing "the old way" of signing add-ons" in Apparently…sions/content/xpinstallConfirm.xul contain the references to them.
  • Unused (in mozilla-central code) xbl bindings are slowly removed. We are being informed about this. stefanh and paenglab did fix the first removals. A shared directory for moved bindings used in all comm-central products has been created.

2.49.x current releases

open tracking (0) tracking requests (5) targeted (0) fixed (68)

2.57.x next release branch

open tracking (0) tracking requests (2) targeted (1) fixed (31)


  • macOS cross-compiling
  • frg did cross compile all relevant trees on Linux starting with comm-esr52 sucessfully using the instructions from IanN in bug 1379062. He has a small cross compile guide available.
    • We might need to make this work fast with the current Linux builders to still be able to compile Nightly if the last builder fails.
    • The new MacStadium Mini Mac can currently not access some internal sites and is right now not usable for producing builds.
    • It is not sure if the cross-compile can create universal macOS 2.49.x builds needed for plugin suppprt but this will only become urgent if the last Mac Mini dies. macOS support for x86 applications is discontinued anyway.
    • Building with the 10.11 SDK need the fixes in bug 1391790 for macOS 10.13.
    • For cross compiling a recent Rust cross package and the cross toolchains are needed. For local use they can be extracted from any Firefox macOS taskcluster build.
    • WG9s plans to provide cross-compile builds on his website.
  • We need someone to work on porting sync 1.5 over to replace legacy sync code.

See: New Firefox Sync has landed in Firefox Nightly. Tracked in:

    • bug 998807 Sync account creation or device pairing fails with exception in BrowserIDManager.
    • bug 1003434 Add support for about:sync-progress.
    • As an alternative to porting sync setting up a sync 1.1 server might work.
    • Sync 1.1 has been removed from the mozilla source tree. If we want Sync 1.1 to work we need to fork it.
      • Pro: We control our own sync server and are not left at the mercies of Mozilla the next time they change their sync system.
      • Con: Can't sync with Firefox (unless someone writes a Sync 1.1 client for Firefox).
    • The sync ui has been disabled in 2.57+ in bug 1432273.
  • frg suggests doing an about:credits page for SeaMonkey contributors. This should link to a new list of people on the SeaMonkey project page.
    • IanN suggests about:smcredits.
    • The mozilla credits page still must be linked because there are many SeaMonkey contributors in it and Gecko is also still the foundation we did and are building on.
  • Tests are broken. Priority for new features or ports according to IanN is to get the code working.

frg suggests splitting off the tests to separate bugs for tracking and hopefully fixing in the future. With the current dev resources at hand he is not very hopeful about fixing the tests fast.

  • Stalled. Needs a kick:
    • bug 815954 Click-to-Play: Port bug 812562 (click-to-play blocklisted plugins: reshow urlbar notification as with normal click-to-play).
    • bug 476108 GetShortPathNameW fails under some NTFS junctions [patchlove].
  • Current breakages:
  • Mozilla-central bugs that affect us:
    • A lot of these bugs are due to mozilla-central switching from synchronous APIs to Asynchronous APIs.
    • bug 888915 Move SeaMonkey to the new JavaScript API for downloads when nsIDownloadManager is decommissioned. Needs further work.
  • [rsx11m] did open bug bug 1305902 for certificate pinning. Discussion if it should be enabled for SeaMonkey is still underway. Callek commented in the bug.
  • Nightly and Aurora updates are broken. bug 1321131 might be the cause. Aurora users need to be migrated to another channel if possible.

Feature List, Planning

Bug statistics for the last three (full) weeks: 16 new, 12 fixed, 2 triaged.

  • minimal triaging effort, very low number of new bugs filed.

Open reviews/flags: 31 review 5 super-review 1 ui-review 11 feedback

  • See Feature List page for major wanted/needed features.
  • TODO:
    • Encrypted Media Extensions / Digital Rights Management
      • bug 1127784 added a preference and UI to enable/disable playback of Encrypted Media Extensions, with UI seen in non-release builds only
      • More work appears to be needed to download necessary 3rd-party Content Decryption Modules, some UI can probably be ported from Firefox
  • Mozilla wants to Move Thunderbird off MoCo infrastructure and onto their own, which will likely affect SeaMonkey as well
  • Fundamental core features Firefox/Mozilla plans to remove:
    • bug 1446341 The XUL "tree" widget will be removed from mozilla-central
      • Major bummer, will affect MailNews and other windows
    • bug 1444685 XUL overlays are going away (SeaMonkey)
    • bug 1222546 Product plan: remove support for heavyweight themes
      • This has been officially removed with Firefox 57. With Firefox 61 theme support has been removed from the source. The Modern theme no longer works in SeaMonkey.
    • bug 1397874 tracks the xbl bindings removal. Only bindings used in Firefox will be kept for now until they are replaced with who-knows-what.
      • Overlays are now also gradually being removed. Mozilla has converted tabbrowser.xml to tabbrowser.js. Needs to be done for SeaMonkey in a later release too.
  • SeaMonkey Composer is outdated. Ratty thinks that using backports or parts of KompoZer [3] might solve some of the problems.
  • x64 Linux and for the first time x64 Windows builds will be made official as soon as possible.
    • Unofficial Linux builds just need to be declared official.
    • Providing Windows x64 builds is tracked in bug 482143.
  • The website and wiki are outdated. InvisibleSmiley no longer maintains the website. The website was updated but it still needs work. Volunteers welcome.
  • frg suggested asking for donations in a future release. Probably during startup or more prominently on the website.
  • frg suggested a tabbrowser.xml overhaul because it's becoming harder to backport fixes from Firefox.
    • IanN suggests doing small patches which are easier to review.
  • There are reports that the PayPal donation on the website doesn't work for USD. It seems the amount is converted to Euro (probably correct if it is a German account).
  • Images should be vectorized and be svg if possible for future updates and HiDPI compatibility.
  • bug 1414390 needs to be ported. intl.locale.requested locale list needs to replace general.useragent.locale. Thunderbird did this in bug 1423532.
  • We need to evaluate if a user agent switcher should be incorporated into SeaMonkey. More and more websites (usps, google) do wrong browser sniffing either deliberately or just using sloppy code. The result is that our users are no longer able to visit these websites without setting a specific UA for it.

Roundtable - Personal Status Updates

IanN generally will handle more complex review requests. frg, rsx11m, stefanh and ewong can also do reviews in their areas of expertise. For bigger changes and branch approvals outside of the build system IanN needs to be involved

Status Updates from developers - what are you working on, what's the progress, any other comments? (feel free to add yourself to the list if your name is missing and you have interesting status).


  • Haven't done much in terms of coding. Been busy getting 2.49.3 out the door and working on getting the new infra up.


Waiting for review:

Waiting for feedback:

  • bug 1370314 SeaMonkey 06/2017 installer rollup. Waiting for feedback what should be taken. Probably not much more right now. Took some parts to other bugs.

Waiting for branch approval:

  • Nothing ready for action.

Checkin ready:

  • Nothing ready for action.

Almost done for a long time now:

  • bug 1452486 Remove nsIDOMHTMLInputElement in SeaMonkey. aceman did the patch. Split from bug 1403067. Has been removed in bug 1418078. Just need to look if the patch bitrotted before asking for review.
  • bug 1428282 Replace obsolete toLocaleFormat for SeaMonkey archive folder name generation. Need to do a final test before asking for review.

Working on:

  • Followup for bug 888915 Convert SeaMonkey Downloads Manager to Downloads.jsm. Actually made progress!

Not working on:

  • Fixing comm-central. Not worth it currently. Only see that it builds.
    • Filed some comm-central bugs and then gave up until 2.57 is in better shape.
    • 2.58+ is broken in capital letters as in BROKEN.

Shelved for later:

  • bug 521861 After creating news account through clicking news URL Account Wizard is broken. On the backburner.
  • bug 1296850 Show standard loading indicator images in tab when busy or progress attribute are set. On the backburner. Asked someone who wants to help out to look at the icons. Got the icons but have no time at the moment.
  • bug 1326377 Media view 'Save As ...' for embedded(?) picture fails. Need to find out how to get the private window status.
  • bug 1379062 Enable cross-compile on SeaMonkey Linux machines. Sucessfully compiled 2.49.2 and 2.57 locally.
  • bug 1392929 Port Bug 886907 [Remove old synchronous contentPrefService] to SeaMonkey. Saved for later.
  • Followups for bug 1379369 to TriggeringPrincipals and UserContextIDs in more functions.

Mostly shelved for now with classic add-on and amo destruction in full swing:

  • bug 1231349 10n repacks broken on with SM 2.42 and newer. DebugQA WIP patch done. extensions temporary disabled to get l10n builds.
  • bug 1374094 Update debugQA extension for older SeaMonkey versions. Need to move a function from editor into the patch and retest it.
  • bug 1402645 Build Lightning binary components for 2.49.1. Needed for 2.49.1!. Temporary fix in the esr branch.
  • Putting updated debugQA and DOMi extensions on AMO. Started with debugQA and noticed that it was no longer compatible with older versions. Will probably never happen with the current state of affairs.


  • Don't upgrade to VS2017 15.7. Compiling will result in an ICE. Tracked in bug 1458247 internal compiler errors in WebRTC code.
  • Don't upgrade to Windows 10 1803 unless you run 2.49.4. See bug 1452619 SyntaxError when creating literal RegExp in eval1326377. It is also fixed in Bills 2.53 build.


Rainer Bielefeld


Pushed to comm-central and branches:


  • bug 1461060 Please add Target "SeaMonkey2.59", {status,tracking}-seamonkey2.59, and approval-comm-esr60 (SM variant)

Working on:


  • bug 1318852 Make labels of cmd_properties action-oriented and context-sensitive, e.g. "Edit Contact", "Edit List", etc.
    • "real" fix

This was pushed as is:



Any other business?

  • The next meeting may be held in two weeks: Sunday May 27, 2018, 14:00 UTC
    • IanN can not attend.