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SeaMonkey Meeting Details


  • Who's taking minutes? -> frg
  • Nominees for Friends of the Fish Tank:
    • Lonely is the fish tank today

Action Items

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



  • The project areas on the website need further updates to reflect the current responsibilities after some long time developers and maintainers left the project. bug 1356106 has already been filed.
  • Planning the future of SeaMonkey with a new infrastructure is in progress.
    • The documentation on the website needs to be updated for recent build config changes. frg can support anyone who wants to do this.


Status of the SeaMonkey infrastructure

  • The old infrastructure will be decommissioned in September.
  • ewong has set up a *very* basic infrastructure on Azure consisting of the following:
        • 1 buildbot master
        • 1 Linux64 slave [CentOS 6.9]
        • 1 Win64 slave [Windows 2016]
        • 1 OSX64 slave [OSX 10.12]
  • Current status of the build bots.
    • Linux64 Slave:
      • 32bit builds: tbd.
      • 64bit builds: tbd.
    • Win64 Slave:
      • 32 and 64bit builds: tbd.
    • OSX64 Slave:
      • Unified builds(comm-esr52 only): tbd.
      • 64bit builds: tbd.
  • The new infrastructure is ready to build. We will start with comm-central.
  • Notes:
  • See RelEng page for the RelEng status history.

Fixed Stuff Since Last Meeting

  • There will be no more updates to the old infrastructure nor will there be any reports on the status of the old buildbot master.
    • Rationale: ewong has little in terms of time and energy to maintain the old infrastructure and set up the new infrastructure as the requirements and necessary changes to the buildbot code is different. The old builders will only be used for current 2.49.x releases based on ESR52 until the new infrastructure is ready.
      • Ergo, ewong has decided to forgo the maintenance of the old infrastructure.
  • Current status is that they *are* building but busted on different issues.
    • Linux64 Slave:
      • 32bit builds: failing on mock init.
      • 64bit builds: failing on compile
    • Win64 Slave:
      • 32 and 64bit builds: Failing on compile due to bad path statement.
    • OSX64 Slave:
    • Failing at compile step. Possibly library issues.
  • In theory the new infrastructure is ready to build. We will probably start with 2.49.5 based on ESR52 because ESR60 and newer require further config changes. The mozilla source there is now in the top directory. The comm-xxx source goes into a directory named comm.
    • Config changes for building comm-esr60 and up in automation are now underway.

Status of the SeaMonkey Source Tree

  • Starting with ESR60 2.57 all builds need to switch to mozilla as topsourcedir. Support for comm-central and comm-esr60 as top source dir is being gradually removed from the build files and is no longer supported.
    • Do not expect to use any 2.58+ release yet other than for checking if it builds. They are fundamentally broken by Mozilla source and api removals. We are currently fixing up 2.57 in the ESR60 repo right now and will tackle this later. Bugs for the 2.57 release will also land in comm-central.
  • [comm-central]:
    • Do not use the 2.60 release.
    • The installer still works...
    • l10n is broken in comm-central because of search plugin issues. If we switch to search/list.json then we need to keep the l10n searchplugin xml files for esr60 or switch esr60 too.
    • Mozilla switched to clang for building Windows. VS2017 is now tier 2.
    • See bug 1452448 for current comm-central breakages.
  • [comm-beta]:
    • We currently do not track nor update comm-beta.
    • Do not use the 2.59 release.
    • See bug 1452448 for current comm-central breakages.
  • [comm-release]:
    • We currently do not track nor update comm-release.
    • Do not use the 2.58 release.
    • An updated unofficial 2.53 is available from WG9's website. We accept filing bugs against it but it is only provided for testing purposes on the way to 2.57.
    • See bug 1379370 for current 2.53 breakages. Tree is at 2.58 already.
  • [comm-esr60]:
    • 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.
    • An unofficial 2.57 is available from WG9's website. We accept filing bugs against it but it is only provided for testing purposes and not very usable at the moment. Please file bugs only against the browser part unless you know a specific problem is new and needs to be fixed. In any case check the existing bug reports to not generate bug noise.
    • See bug 1433370 for current 2.57 breakages.
  • [comm-esr52]:
    • See bug 1313304 for current breakages.
    • Builds from this repo are the only ones fully usable right now.

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 becomes EOL.
    • 2.57 will be build from the comm-esr60 repo.
    • Thunderbird did release TB 60. Mail and news are still broken in SeaMonkey 2.57.
    • Not all patches with l10n-relevant string changes are done for 2.57. frg 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 alternatives presented.
      • IanN suggested asking Pike or flod about it.
      • With the preliminary solution no buildbot changes would be needed.
      • comm-central only patches must not delete any strings in the suite en-US directory until 2.57 is out.
      • When doing patches please make sure to change the l10n labels when the content changes.
  • 2.49.4 has been released on July 27th
    • Updates from older SeaMonkey versions to 2.49.4 are currently not working (including from 2.48 or 2.49.x). This has been announced on the project page.
    • ewong tries to fix the update process for the aus3 server. This is broken since 2.48 and did 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 following bugs are not yet fixed in 2.49.4:
      • bug 1409458 "Privacy Issue: Replying to or forwarding an HTML e-mail with external content".
      • 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.
        • NewTobinParadigm says Basilik is ok with gcc 7.
    • 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.
    • Because 2.57 is not yet ready we plan to backport security fixes for future 2.49.x releases.
      • Thunderbid does not plan to do a 52.10 release.
      • We will set up new branches in comm-esr52 and mozilla-esr52 for building future 2.49.x releases.
      • frg will check together with IanN what esr60 fixes need to be backported.
      • frg backported support for VS2017 and the latest Windows toolkit to 2.49. We will check this into the new release branch when ready.
  • An official 2.53 Beta might be done later.
    • A release would need l10n translations. The temporary solution for 2.57 will not work for this release.
    • A release would need further security fixes. frg tries to keep it as current as possible in his spare time.
    • The last known regression compared to 2.49.x has been fixed in 2.53.
    • Bill posted the patch files from frg containing the backported source and fixes on his wg9s website for 2.53.
      • frg maintains the patches for 2.53 on gitlab in a private repo. Anyone who wants access can send him an email.
      • The repo minus any private fixes could be used to create beta branches 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.
  • 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 has been removed from Gecko 62. Thunderbird did build a lightweight solution for converting existing overlays.
    • Thunderbird has added preliminary WebExtension support to Thunderbird 63.
    • Lightning is packed directly into Thunderbird and SeaMonkey now. This was done in bug 1451847 for SeaMonkey.
      • While packed directly it is still maintained as an extension.
    • Add-ons need to switch to optionsType 3 for 2.57. TB did a fix showing the preferences in the menu list. We need to port this bug for 2.57.
  • WebExtension support in SeaMonkey 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 for the 2.57 release.
    • Candidate number 1 is ChatZilla.
      • ChatZilla development seems to have stopped. IanN thinks he can fix it. Thunderbird includes the chat from the discontinued Instantbird now.

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

    • Lightning is still working in 2.57 and directly distributed starting with 2.57.
    • Adblock Plus and uBlock are both broken in SeaMonkey 2.54+
    • SeaTab X2 and Version Number work in 2.57.
  • The SeaMonkey and Thunderbird add-ons are now hosted on [1].
    • [2] redirects to it. 2.57 has already been switched over to the new site in bug 1475799. This can be done for 2.49 too if needed.
    • The old add-ons website api has been removed in bug 1402064 for Gecko 60 and up. We might need to do some further porting here to smoothly

integrate installation from the add-ons site.

    • For Thunderbird a new add-on [3] is available to switch to thinderbird net.
      • 2.57, comm-central and the inofficial 2.53 already have updated prefs. We plan to do this for a future 2.49 release.
  • 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 (74)

2.57.x next release branch

open tracking (0) tracking requests (2) targeted (0) fixed (61)


  • 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 anytime soon.

  • 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.
  • [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 two (full) weeks: 4 new, 3 fixed, 1 triaged.

  • not much going on over the last two weeks ago.

Open reviews/flags: 33 review 5 super-review 1 ui-review 13 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
  • Fundamental core features Firefox/Mozilla plans or did remove:
    • bug 1446341 The XUL "tree" widget will be removed from mozilla-central
      • Major bummer, will affect MailNews and other windows, Core bug 1446335
    • bug 1444685 XUL overlays are gone (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.
  • 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.
  • a+ from trusted regular patch authors/reviewers for ESR60 / 2.57 is implied as long as it only affects the suite directory. This will change back to a general needed a+ when the tree becomes more stable and will be announced then. If in doubt ask for approval.

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).



Waiting for review:

  • Nothing ready for action.

Waiting for feedback:

  • Nothing ready for action.

Waiting for branch approval:

  • Nothing ready for action

Checkin ready:

  • bug 1323494 Switch geolocation and other permissions to Gecko notification prompt. Last known somewhat major 2.53 regression!
  • bug 1482707 Merge browser.js and navigator.js in suite/browser.

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.

Working on:

  • bug 1474490 Restore spinbox and number boxes in SeaMonkey. Next in line for 2.57
  • Port of bug 1100103 Add a remove button to every To/CC/BCC address in Composer. No bug yet.
  • Helping MMR with bug 1444740 Drop support for -moz-border-*-colors in SeaMonkey.

Not working on:

  • Fixing comm-central. Not worth it currently. Only see that it builds.
    • 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.
  • bug 1296850 Show standard loading indicator images in tab when busy or progress attribute are set. Asked someone who wants to help out to look at the icons. Got the icons but have no time at the moment.
  • 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.
  • Followups for bug 1379369 to TriggeringPrincipals and UserContextIDs in more functions.
  • bug 1370314 SeaMonkey 06/2017 installer rollup. Probably not much more right now. Took some parts to other bugs. and will see what is left when 2.57 is ready.

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.


  • Mostly worked on VS2017 and latest toolkit support for 2.49.x and 2.53 last week. Also TLS 1.3 for 2.53.
  • Don't upgrade to VS2017 15.7. Compiling will result in an ICE. Tracked in bug 1458247 internal compiler errors in WebRTC code. Fixed in VS2017 15.8 preview 3 and the resulting build also no longer crashes with preview 4.


Rainer Bielefeld


Still thinking about:


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



Any other business?

  • The next meeting will be held in two weeks: Sunday September 2, 2018, 14:00 UTC