316
edits
Changes
Put statusbarpanel-iconic[-text] into the correct section
# If add-on's install.rdf contains <em:optionsType>3</em:optionsType>, the Preferences button will appear in the Add-on Manager tab besides the add-on, as was the case in older versions. Clicking the button will open the preferences page in a new tab. The preferences page (optionsURL) is also accessible via the new submenu in Tools menu and will open in a tab. No other value of <em:optionsType> is supported and TB will even refuse to install such add-ons (decision from {{bug|1414406}}).
# Alternatively, add-ons may embed a WebExtension to display inline options [https://developer.mozilla.org/Add-ons/WebExtensions/Embedded_WebExtensions][https://developer.mozilla.org/Add-ons/WebExtensions/manifest.json/options_ui]. This should be working now that {{bug|1418914}} has been fixed.
* The statusbarpanel-iconic and statusbarpanel-iconic-text was removed, use toolbarbutton instead. See {{bug|1417198}} for [https://hg.mozilla.org/comm-central/rev/d342491c066b an example].
== Changes to JS in mozilla59 ==
* catch (ex if ...)
* |Services.intl.createDateTimeFormat(...)| in Thunderbird 57 and 58 changed to |new Services.intl.DateTimeFormat(...)|
== Changes in thunderbird59 ==
