firefox-dev Digest, Vol 96, Issue 11

[firefox-d...@mozilla.org]

Send firefox-dev mailing list submissions to
firef...@mozilla.org

To subscribe or unsubscribe via the World Wide Web, visit
https://mail.mozilla.org/listinfo/firefox-dev
or, via email, send a message with subject or body 'help' to
firefox-d...@mozilla.org

You can reach the person managing the list at
firefox-...@mozilla.org

When replying, please edit your Subject line so it is more specific
than "Re: Contents of firefox-dev digest..."


Today's Topics:

1. Firefox Headlines (December 18th, 2020) (Mike Conley)


----------------------------------------------------------------------

Message: 1
Date: Fri, 18 Dec 2020 11:09:40 -0500
From: Mike Conley <mco...@mozilla.com>
To: Firefox Dev <firef...@mozilla.org>
Subject: Firefox Headlines (December 18th, 2020)
Message-ID:
<CA+3p4uZ320CQH2TQb7RFgRy-cS=_AuxP6q0Yo8C...@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"

Hello all,

The Desktop team for our final meeting of the year to discuss the various
goings-on in the codebase. A few of us stuck around afterwards to rearrange
the notes into something a bit more palatable for your enjoyment. We'll see
you in 2021!

Special thanks to Harry Twyford and Doug Thayer who put these notes
together with me.
Highlights

- Here's our Firefox Year in Review!
<https://blog.mozilla.org/blog/2020/12/15/our-year-in-review-how-weve-kept-firefox-working-for-you-in-2020/>
-

Here?s our Performance Year in Review!
<https://blog.mozilla.org/performance/2020/12/15/2020-year-in-review/>
-

We've just landed Bug 1553982
<https://bugzilla.mozilla.org/show_bug.cgi?id=1553982>, which aims to
prevent starting an update while another Firefox instance is running (the
cause of that about:restartrequired error page you may have seen).
- [Screenshot]
<https://blog.nightly.mozilla.org/files/2020/12/headlines85_0.png>
- Caption: The about:restartrequired error page, saying "Sorry. We
just need to do one
small thing to keep going. Nightly has just been updated in the
background.
Click Restart Nightly to complete the update. We will restore all
your pages,
windows and tabs afterwards, so you can be on your way quickly.",
followed by
a button to restart Nightly.
-

Also just about to land is Bug 353804
<https://bugzilla.mozilla.org/show_bug.cgi?id=353804>, which provides
some support for downloading new updates when we already have an update
downloaded but haven't installed it yet. That should prevent many cases of
restarting to finish an update and then immediately being notified about
another one.
-

Thanks to evilpie, users can now import logins from Keepass(XC) into
Firefox <https://bugzilla.mozilla.org/show_bug.cgi?id=1650645>
-

From Firefox 85 it?s now possible to disable tab-to-search on a
per-engine basis, by unchecking a search engine in Search Preferences.
That will both hide the shortcut button and disable tab-to-search for the
engine. (Bug 1681512
<https://bugzilla.mozilla.org/show_bug.cgi?id=1681512>)
-

From Firefox 85 it?s also possible to disable tab-to-search globally by
unchecking the Search Engines checkbox in the Address Bar Preferences,
under Privacy & Security.
-

Firefox now supports printing non-contiguous page ranges (e.g. 1-3, 6,
7) - Bug 499640 <https://bugzilla.mozilla.org/show_bug.cgi?id=499640>
-

DevTools and Marionette are now fully Fission compatible!
Congratulations to those teams!
-

Reminder: Nightly users can help us test Fission by enabling it in
about:preferences#experimental, and filing bugs here
<https://bugzilla.mozilla.org/enter_bug.cgi?assigned_to=nobody%40mozilla.org&blocked=1561396&bug_ignored=0&bug_severity=--&bug_status=NEW&bug_type=defect&cf_a11y_review_project_flag=---&cf_fission_milestone=---&cf_fx_iteration=---&cf_fx_points=---&cf_root_cause=---&cf_status_firefox83=---&cf_status_firefox84=---&cf_status_firefox85=---&cf_status_firefox86=---&cf_status_firefox_esr78=---&cf_status_thunderbird_esr78=---&cf_tracking_firefox84=---&cf_tracking_firefox85=---&cf_tracking_firefox86=---&cf_tracking_firefox_esr78=---&cf_tracking_firefox_relnote=---&cf_tracking_firefox_sumo=---&cf_tracking_thunderbird_esr78=---&cf_webcompat_priority=---&component=DOM%3A%20Navigation&contenttypemethod=list&contenttypeselection=text%2Fplain&defined_groups=1&filed_via=standard_form&flag_type-203=X&flag_type-37=X&flag_type-41=X&flag_type-607=X&flag_type-721=X&flag_type-737=X&flag_type-787=X&flag_type-799=X&flag_type-800=X&flag_type-803=X&flag_type-846=X&flag_type-855=X&flag_type-863=X&flag_ty
pe-864=X&flag_type-930=X&flag_type-936=X&flag_type-937=X&flag_type-945=X&form_name=enter_bug&maketemplate=Remember%20values%20as%20bookmarkable%20template&op_sys=Unspecified&priority=--&product=Core&rep_platform=Unspecified&target_milestone=---&version=unspecified>

Friends of the Firefox teamIntroductions/Shout-Outs

-

[harry] Amy Churchwell joins the Search & Navigation team today. She
transferred internally from Marketing Engineering. Welcome Amy!

Resolved bugs (excluding employees)
<https://bugzilla.mozilla.org/buglist.cgi?title=Resolved%20bugs%20(excluding%20employees)&quicksearch=1647931%2C1649618%2C1650645%2C1652412%2C1654217%2C1664768%2C1666831%2C1667061%2C1671579%2C1674806%2C1678173%2C1678372%2C1678616%2C1678865%2C1678866%2C1679252%2C1679412%2C1680931%2C1681213%2C1681554%2C1681642%2C1681948>Fixed
more than one bug

-

Masatoshi Kimura [:emk]
-

Michelle Goossens [:masterwayz]
-

Sonia
-

Tim Nguyen :ntim

New contributors (? = first patch)

-

? Ankush Dua fixed an issue with revoked devtools_page permissions for
WebExtensions <https://bugzilla.mozilla.org/show_bug.cgi?id=1671579>
-

? gero removed the windowtype attribute
<https://bugzilla.mozilla.org/show_bug.cgi?id=1674806> from dialogs
where we didn?t need it anymore
-

manekenpix converted some DevTools code
<https://bugzilla.mozilla.org/show_bug.cgi?id=1664768> to use DOM
Promises instead of the defer library

Project UpdatesAdd-ons / Web ExtensionsAddon Manager & about:addons

-

Starting from Firefox 85, Mozilla-signed privileged addons can be
installed from a third party website without triggering the ?third party
addon install doorhanger? (and without having to add new ?install? site
permission for those hosts, e.g. as we had to do for fpn.firefox.com
<https://searchfox.org/mozilla-central/rev/23c25cd32a1e87095301273937b4ee162f41e860/browser/app/permissions#24-25>)
- Bug 1681331 <https://bugzilla.mozilla.org/show_bug.cgi?id=1681331>


-

Fixed addon startup issue when an extension sideloaded in the profile is
updated on disk (Bug 1664144
<https://bugzilla.mozilla.org/show_bug.cgi?id=1664144>)
-

Some more small about:addons cleanup from ntim (Bug 1678173
<https://bugzilla.mozilla.org/show_bug.cgi?id=1678173>, Bug 1678865
<https://bugzilla.mozilla.org/show_bug.cgi?id=1678865>, Bug 1678866
<https://bugzilla.mozilla.org/show_bug.cgi?id=1678866>). Thanks a lot,
ntim!


WebExtensions Framework

-

Ankush Dua contributed a fix for the devtools optional_permission (the
devtools optional_permission can be used by extension, like ABP, that
provides a devtools panel as a secondary feature of the addon) - Bug
1671579 <https://bugzilla.mozilla.org/show_bug.cgi?id=1671579>
-

Fixed content scripts applied to webpages loaded as subframes of an
extension browserAction/pageAction popup when Fission is enabled - Bug
1680877 <https://bugzilla.mozilla.org/show_bug.cgi?id=1680877>
-

Fixed addon startup issue when webRequest is moved from permissions to
optional_permissions in an addon update (regression from Bug 1624235
<https://bugzilla.mozilla.org/show_bug.cgi?id=1624235>) - Bug 1637059
<https://bugzilla.mozilla.org/show_bug.cgi?id=1637059>

Developer Tools

-

DevTools Fission M2 - Making DevTools Fission compatible DONE.
- [Screenshot]
<https://blog.nightly.mozilla.org/files/2020/12/headlines85_1.png>
- Caption: A table showing the total number of remaining bugs for
the MVP to make the DevTools Fission-compatible.


-

Marionette Fission - Making Marionette Fission compatible DONE
- [Screenshot]
<https://blog.nightly.mozilla.org/files/2020/12/headlines85_2.png>
- Caption: Marionette, the framework that allows Firefox to be
tested with automation, is now Fission compatible too!

Fission

-

Neil has patches up to improve the behaviour of the tab unloader
<https://bugzilla.mozilla.org/show_bug.cgi?id=1682442>, and show UI when
subframes crash <https://bugzilla.mozilla.org/show_bug.cgi?id=1644911>

Installer & Updater

-

Background updater work is also proceeding, with Bug 1676296
<https://bugzilla.mozilla.org/show_bug.cgi?id=1676296> landing last week
to support managing scheduled tasks in Gecko, and more development still
also happening on the background task framework.

New Tab Page and Pocket

-

We?re running three experiments:
-

Newtab Pocket stories in AU and NZ
-

New signup/login call-to-action in the Pocket doorhanger
-

We?re testing some changes to newtab story personalization

Password Manager <https://wiki.mozilla.org/Toolkit:Password_Manager>

-

Dimi fixed Bug 1677710
<https://bugzilla.mozilla.org/show_bug.cgi?id=1677710> The password
manager code triggers main thread sqlite disk I/O off of the
gather-telemetry notification
-

And Bug 1678200 <https://bugzilla.mozilla.org/show_bug.cgi?id=1678200>
Remove or update probes expiring in Firefox 86:
pwmgr.doorhanger_submitted#doorhanger_submitted
-

Thanks for Kenrick95 for fixing Bug 1678616
<https://bugzilla.mozilla.org/show_bug.cgi?id=1678616> about:logins menu
problem
-

2021 Planning underway

PDFs & Printing

-

mstriemer put a Printing? message in the dialog and hid the popup dialog
which showed progress, the cancel button on that dialog caused problems and
it looked dated Bug 1679133
<https://bugzilla.mozilla.org/show_bug.cgi?id=1679133>
-

mstriemer hid the print setting that don?t relate to PDFs when a PDF is
being printed Bug 1669725
<https://bugzilla.mozilla.org/show_bug.cgi?id=1669725>
-

mstriemer updated the form to be disabled when loading a printer?s
settings. Sometimes loading a physical printer?s settings can take a few
settings and changes could be lost in this time Bug 1676388
<https://bugzilla.mozilla.org/show_bug.cgi?id=1676388>
-

emalysz made a change to avoid updating the preview for some settings
that can?t change the preview output Bug 1676199
<https://bugzilla.mozilla.org/show_bug.cgi?id=1676199>
-

sfoster added a paginator to the preview when it?s hovered to show
current page, next/prev/first/last buttons Bug 1654684
<https://bugzilla.mozilla.org/show_bug.cgi?id=1654684>
-

emalysz added support for non-contiguous page ranges (ex: 1-3, 6, 7) Bug
499640 <https://bugzilla.mozilla.org/show_bug.cgi?id=499640>
-

emalysz fixed an issue where the form could get disabled with custom
margins interactions Bug 1674106
<https://bugzilla.mozilla.org/show_bug.cgi?id=1674106>

Performance

-

emalysz continues to make progress leading the charge migrating us from
OS.File to IOUtils
-

Shout out to barret for landing necessary changes to IOUtils to
support the migration!
-

Currently investigating a bizarre ts_paint_webext regression
<https://bugzilla.mozilla.org/show_bug.cgi?id=1679252> caused by one
of these conversions
-

emalysz fixed a performance issue with the Screenshots feature
<https://bugzilla.mozilla.org/show_bug.cgi?id=1664444>, and made it more
compatible with Fission
-

bigiri has a patch to move SharedDataMap.jsm off of OSFile
<https://bugzilla.mozilla.org/show_bug.cgi?id=1649610>
-

florian?s team has landed some great documentation
<https://firefox-source-docs.mozilla.org/tools/profiler/markers-guide.html>
for the new profiler marker API
-

florian has some new visualization variations up for the BHR dashboard
-

showFrames <http://queze.net/bhr/test/#showFrames=1>
-

onlyXulLeaf <http://queze.net/bhr/test/#showFrames=1&onlyXulLeaf=1>
-

skipKnownBugs
<http://queze.net/bhr/test/#showFrames=1&onlyXulLeaf=1&skipKnownBugs=1>
-

This BHR dashboard helped identify a hang caused by the password
manager code, which has been recently fixed
<https://bugzilla.mozilla.org/show_bug.cgi?id=1677710>! Thanks, dimi!
-

Gijs made the Bookmarks Toolbar initialization occur later in the
startup window <https://bugzilla.mozilla.org/show_bug.cgi?id=1667237>
-

Gijs fixed some flicker
<https://bugzilla.mozilla.org/show_bug.cgi?id=1681169> that occurred
when launching the browser with the Bookmarks Toolbar enabled
-

mconley fixed an AsyncShutdown hang caused by the about:home startup
cache <https://bugzilla.mozilla.org/show_bug.cgi?id=1673716>
-

mconley re-enabled TART
<https://bugzilla.mozilla.org/show_bug.cgi?id=1651311>
-

dthayer has some fixes
<https://bugzilla.mozilla.org/show_bug.cgi?id=1672789> and polish
<https://bugzilla.mozilla.org/show_bug.cgi?id=1678488> for the pre-XUL
skeleton UI <https://bugzilla.mozilla.org/show_bug.cgi?id=1680258>

Picture-in-Picture

-

We?ve got the green light for another round of MSU students hacking on
Picture-in-Picture next semester! mhowell and mtigley will be mentoring
them.
-

In progress:
-

Bug 1677080 - Fullscreen PiP window is affected by switching video
source <https://bugzilla.mozilla.org/show_bug.cgi?id=1677080>
-

Bug 1677107 - Add Telemetry for tracking multiple PiP support usage
<https://bugzilla.mozilla.org/show_bug.cgi?id=1677107>
-

Bug 1681796 - Prevent superfluous PictureInPictureParent actors from
being associated with each tab
<https://bugzilla.mozilla.org/show_bug.cgi?id=1681796>
-

Bug 1680796 - Ensure that the tab's Toolkit:PictureInPicture actor is
destroyed before moving to next test
<https://bugzilla.mozilla.org/show_bug.cgi?id=1680796>
-

Bug 1678390 - Prevent Picture-in-Picture windows from opening on top
of one another <https://bugzilla.mozilla.org/show_bug.cgi?id=1678390>

Search and Navigation

-

Fixed regressions related to Input Method Editor, in particular loss of
the last token (Bug 1673669
<https://bugzilla.mozilla.org/show_bug.cgi?id=1673669>) and race
conditions causing the wrong search engine to be used or Search Mode to be
lost (Bug 1679697 <https://bugzilla.mozilla.org/show_bug.cgi?id=1679697>,
Bug 1678647 <https://bugzilla.mozilla.org/show_bug.cgi?id=1678647>)
-

Introduced a new advanced preference to keep the Address Bar results
panel open during IME composition. This provides a better experience for
keyboard layouts that don?t open a picker panel. In the future we hope to
be able to auto-detect that situation, but in the meanwhile, you can flip
browser.urlbar.imeCompositionClosesPanel to false and test the
alternative behavior (Bug 1673971
<https://bugzilla.mozilla.org/show_bug.cgi?id=1673971>)
-

URL canonization (www.*.com) now uses https by default, the protocol can
be customized through the browser.fixup.alternate.protocol advanced pref
(Bug 1638215 <https://bugzilla.mozilla.org/show_bug.cgi?id=1638215>)
-

Work continued on the weather QuickSuggest experiment, but its release
has been moved to January.
-

Region.jsm now can use a Geolocation monitor to update without hitting
the network (Bug 1663501
<https://bugzilla.mozilla.org/show_bug.cgi?id=1663501>)
-

Fixed a bug where search engines were being re-added on startup after
their removal, when using a language pack (Bug 1675624
<https://bugzilla.mozilla.org/show_bug.cgi?id=1675624>)


Below the fold

-

[mconley] Please stop using preprocessor directives (%ifdef, %include)
in our CSS
-

@import
-

Other tactics in comment 0 of this bug
<https://bugzilla.mozilla.org/show_bug.cgi?id=1659583>
-

[harry] If you?re a frequent Searchfox user, I made a simple search
engine add-on
<https://addons.mozilla.org/firefox/addon/searchfox-search-engine/> that
adds a Searchfox keyword (@searchfox) and search engine one-off button.


This information, including all of the previous updates, are fully
available in this doc:
https://docs.google.com/a/mozilla.com/document/d/1u9YH3ULNRYg6G-fN-Udkvfkcvg0alJfzi_zIAfFNkL8/edit?usp=sharing

Also note that I'm really just synthesizing and humanizing the stuff that's
on the Wiki, which is freely available from here:
https://wiki.mozilla.org/Firefox/Meeting, so check that out if you want the
source material. It'll also be posted (minus the Below the Fold stuff) to
the Nightly blog.

Finally, if there's a Firefox-ish team that you feel isn't being
represented here, please let them know about the above meeting so we can
get their updates.

Keep on rockin' the free web,


-Mike
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.mozilla.org/pipermail/firefox-dev/attachments/20201218/8f376169/attachment.html>

------------------------------

Subject: Digest Footer

_______________________________________________
firefox-dev mailing list
firef...@mozilla.org
https://mail.mozilla.org/listinfo/firefox-dev


------------------------------

End of firefox-dev Digest, Vol 96, Issue 11
*******************************************