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On 2021-08-11T21:17:58+00:00 Aosmond wrote:

The latest Fedora and Ubuntu releases, and presumably any derivatives
thereof, ship Firefox on Wayland by default. They don't use the
compatibility layer XWayland, but rather actual Wayland using our pref
MOZ_ENABLE_WAYLAND to force it on.

Right now we are unable to test this configuration in CI because our
version of Ubuntu is too old to work well as Wayland development is
quite active.

We don't need our existing tests on Linux to be fully ported, but it
would be good to have the option to run some tests using Wayland on a
newer Ubuntu, such as 21.04. This would allow us to start greening the
tree for Wayland, and push it out officially from our side.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/0

------------------------------------------------------------------------
On 2021-08-13T08:16:57+00:00 Stransky wrote:

The recent Wayland test suite (Bug 1578640) based on Ubuntu 18.04 is
working relatively well.

The only issue there is missing focus support. The failures you see
there are caused broken focus where we wait for focus (that produces
timeouts) or we expect a window has focus (that produces reftest
failures).

These failures are pretty random as it depends how the focus is handled
by compositor - we use a workaround where we hide/show a window and hope
it gets the focus after show.

Only reliable way how to fix that is XDG activation protocol implementation 
(https://wayland.app/protocols/xdg-activation-v1).
This is not finished yet 
(https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1845). Robert, do you 
know when this may be available in Mutter? For instance I don't see it in 
mutter-40.3-1.fc34.x86_64 package.

So our goal is to have compositor with XDG activation protocol available
to test Wayland reliably.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/1

------------------------------------------------------------------------
On 2021-08-13T15:24:36+00:00 Robert Mader wrote:

Copying my answer from the issue here:

> Current status is that we'll ship it in 41 - we may backport it to 40, but 
> Ubuntu 21.04 still uses 3.38. So I currently don't see to get it into the FF 
> CI apart from
> - waiting for 21.10
> - using another distro
> - asking Ubuntu devs to backport it to Gnome 3.36 so we can use Ubuntu 20.04 
> (I don't think they'll backport to Ubuntu 21.04, but that would also be an 
> option)

That being said, I think in the Mutter version in Ubuntu 18.04 are quite
a few Wayland related bugs - not to mention all those fixes for
compositor integration. So I guess we'd want at least Ubuntu 20.04 so we
don't run into already fixed issues.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/2

------------------------------------------------------------------------
On 2021-08-13T15:38:00+00:00 Aosmond wrote:

I think we want 21.04 given that is the release users are getting
Wayland today. Test what is already shipping :). They don't get it in
20.04 by default.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/3

------------------------------------------------------------------------
On 2021-08-26T16:11:43+00:00 Jmaher wrote:

:stranksy - do you know of prior art/docs on getting wayland running on
docker?  Currently we run tests on docker with xvfb - my understanding
is wayland on xvfb == xwayland;  that is not wayland proper.  Any advice
you have on this would be helpful.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/4

------------------------------------------------------------------------
On 2021-08-26T16:46:30+00:00 Robert Mader wrote:

For the record from matrix:
> robert.mader
> jmaher: for the record, "wayland on xvfb == xwayland" sounds wrong to me. 
> Xwayland runs on top of Wayland, so Xwayland would imply "x11 on wayland on 
> xvfb". So if a nested Wayland session runs on top of xvfb, that's entirely 
> valid.
"Wayland on native backend" would certainly be better than "Wayland on X11 
backend", but for docker tests the later should be fine for now.
> jmaher
> robert.mader: ok, then maybe this isn't such a hard problem to solve- I was 
> reading up on it and kept running into more resources about pure Wayland 
> without xvfb; I will keep looking into this a bit more
> robert.mader
> jmaher: Gnome-Shell/Mutter only supports native headless Wayland mode since 
> very recently (since Gnome 40), see 
> https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1698. Ubuntu 21.04 
> still ships 3.38 (because of big UI changes, also mind the versioning 
> switch). So IIUC this will only work from Ubuntu 21.10 on :/
> jmaher
> ok, that seems very new- probably not what we want right now

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/5

------------------------------------------------------------------------
On 2021-08-26T16:58:56+00:00 Jmaher wrote:

for unrelated reasons (OOM, should be fixed with upgraded MESA) we would
like to run the marionette tests on this new 21.04 image as well

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/6

------------------------------------------------------------------------
On 2021-08-26T17:47:24+00:00 Stransky wrote:

(In reply to Joel Maher ( :jmaher ) (UTC -0800) from comment #4)
> :stranksy - do you know of prior art/docs on getting wayland running on 
> docker?  Currently we run tests on docker with xvfb - my understanding is 
> wayland on xvfb == xwayland;  that is not wayland proper.  Any advice you 
> have on this would be helpful.

The testing wayland scripts are already there - see Bug 1578640

The important part is here:
https://searchfox.org/mozilla-central/rev/28c8f793f9f8c80de24a179b4472098692a7e9a4/taskcluster/scripts/tester/test-linux.sh#210

This launch Wayland compositor (Mutter in this case) which provides
Wayland display.

xvfb is used as underlying X11 server as AFAIK Mutter fails to run
without X11. If any new version does not need X11 to run, you can just
run mutter without it.

Generally when you set WAYLAND_DISPLAY env variable and
MOZ_ENABLE_WAYLAND=1 env variable Firefox will run under Wayland and it
does not matter if there's X11, Xwayland or any other X server running.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/7

------------------------------------------------------------------------
On 2022-01-11T19:55:13+00:00 Robert Mader wrote:

Given that 21.04 is going EOL next week and 22.04 (LTS) is already in
alpha, I'm taking the freedom to update the request.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/8

------------------------------------------------------------------------
On 2022-03-29T06:13:58+00:00 Stransky wrote:

Ubuntu 22.04 is live now and it's even running Firefox on Wayland by
default. We need to do the testing ASAP.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/9

------------------------------------------------------------------------
On 2022-03-29T14:17:23+00:00 Jmaher wrote:

we just did a manual QA pass on this, ASAP == DONE :)

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/10

------------------------------------------------------------------------
On 2022-03-29T14:19:39+00:00 Emilio wrote:

But we still don't have CI for this right? That seems unfortunate :(

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/11

------------------------------------------------------------------------
On 2022-03-29T14:29:28+00:00 Jmaher wrote:

These comments are not productive, lets work to keep our bugzilla
comments about issues and solving problems, not opinions.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/12

------------------------------------------------------------------------
On 2022-03-29T14:36:33+00:00 Emilio wrote:

I was just trying to confirm that CI for this is not set up yet, sorry
if it came across the wrong way... If there's anything I can help with
to get it set up let me know, I'd be happy to help.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/13

------------------------------------------------------------------------
On 2022-03-29T14:49:21+00:00 Jmaher wrote:

yeah, CI is not setup, and probably won't be until the summer.  We don't
have headcount and our contractor is blocked on access (which goes to
headcount in other teams).  There is a long list of things, our
priorities are migrating from AWS to GCP and replacing old performance
hardware (old phones and laptops).  We are using manual QA to give us
sanity checks in the meantime.

The biggest problem we have is that our current images run in docker
images and the last 3 times we have spent 3+ months just getting a
desktop windowing environment to work properly from within docker.  I
have proposed switching to a VM where this is a task that can complete
in a day or two for a simple experiment, but for automation requires
some retooling and provisioning changes (then we are back migrating
cloud providers).

This is a higher priority than windows 11. OSX upgrades, or android
emulator upgrades.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/14

------------------------------------------------------------------------
On 2022-03-29T15:02:02+00:00 Emilio wrote:

Thanks for the update Joel (and for all the work you and your team do)

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/15

------------------------------------------------------------------------
On 2022-03-30T15:15:40+00:00 Jmaher wrote:

*** Bug 1752113 has been marked as a duplicate of this bug. ***

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/16

------------------------------------------------------------------------
On 2022-04-11T16:18:22+00:00 Olivier Tilloy wrote:

(In reply to Martin Stránský [:stransky] (ni? me) from comment #9)
> Ubuntu 22.04 is live now and it's even running Firefox on Wayland by default. 
> We need to do the testing ASAP.

A minor clarification: Ubuntu 22.04 hasn't been released yet, it will go
live on 2022-04-21. Also note that users of Ubuntu 20.04 won't be
offered to upgrade until 22.04.1 is released, on 2022-08-04. See [the
release schedule](https://discourse.ubuntu.com/t/jammy-jellyfish-
release-schedule/23906) for details.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/17

------------------------------------------------------------------------
On 2022-04-12T07:36:59+00:00 Olivier Tilloy wrote:

And to further mitigate potential issues with Firefox on Wayland not
being ready for prime time, we can easily disable it (by setting
`DISABLE_WAYLAND: 1` in the launch environment) until it is deemed
ready.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/18

------------------------------------------------------------------------
On 2022-04-12T07:46:04+00:00 Olivier Tilloy wrote:

Done here: https://git.launchpad.net/~mozilla-snaps/+git/firefox-
snap/commit/?id=4f3ad5cdc390fedab5db6e2d9a062a2c3bd88474

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/19

------------------------------------------------------------------------
On 2022-04-27T19:48:49+00:00 Olivier Tilloy wrote:

I've had the firefox snap crash 3 times today, while running it from the 
candidate channel (100.0-1) in a wayland session (Ubuntu 22.04). These crashes 
didn't trigger the crash reporter.
The last time (just now) I happened to be running it from a terminal, and I got 
this:

    (firefox:80147): Gdk-WARNING **: 21:44:48.720: The program 'firefox' 
received an X Window System error.
    This probably reflects a bug in the program.
    The error was 'BadValue'.
      (Details: serial 980422 error_code 2 request_code 53 (core protocol) 
minor_code 0)
      (Note to programmers: normally, X errors are reported asynchronously;
       that is, you will receive the error a while after causing it.
       To debug your program, run it with the GDK_SYNCHRONIZE environment
       variable to change this behavior. You can then get a meaningful
       backtrace from your debugger if you break on the gdk_x_error() function.)

I wonder whether that might speak in favour of reverting to native
wayland (which I've been running for months without seeing any such
crash)?

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/20

------------------------------------------------------------------------
On 2022-04-28T09:50:05+00:00 Pascalc wrote:

(In reply to Olivier Tilloy from comment #20)
> I've had the firefox snap crash 3 times today, while running it from the 
> candidate channel (100.0-1) in a wayland session (Ubuntu 22.04). These 
> crashes didn't trigger the crash reporter.
> The last time (just now) I happened to be running it from a terminal, and I 
> got this:
> 
>     (firefox:80147): Gdk-WARNING **: 21:44:48.720: The program 'firefox' 
> received an X Window System error.
>     This probably reflects a bug in the program.
>     The error was 'BadValue'.
>       (Details: serial 980422 error_code 2 request_code 53 (core protocol) 
> minor_code 0)
>       (Note to programmers: normally, X errors are reported asynchronously;
>        that is, you will receive the error a while after causing it.
>        To debug your program, run it with the GDK_SYNCHRONIZE environment
>        variable to change this behavior. You can then get a meaningful
>        backtrace from your debugger if you break on the gdk_x_error() 
> function.)
> 
> I wonder whether that might speak in favour of reverting to native wayland 
> (which I've been running for months without seeing any such crash)?

Did you file a bug?

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/21

------------------------------------------------------------------------
On 2022-04-28T13:50:42+00:00 Olivier Tilloy wrote:

(In reply to Pascal Chevrel:pascalc from comment #21)
> Did you file a bug?

Now I have: bug 1766849

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/22

------------------------------------------------------------------------
On 2022-05-03T12:12:59+00:00 Olivier Tilloy wrote:

Another data point: several users have reported that a cold startup of
the firefox snap (just after booting the machine) on Ubuntu 22.04 in a
Wayland session is significantly faster when using the beta channel than
with the candidate channel. The only meaningful difference between the
two is that the snap in the candidate channel forces the use of
XWayland, whereas beta makes use of native Wayland support.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/35

------------------------------------------------------------------------
On 2022-05-14T01:48:38+00:00 Tim Richardson wrote:

in lieu of CI infrastructure, can you accept as an alternative some kind
of community feedback? Because Firefox under wayland has been great on
Fedora for > 12 months, and the beta channel seems to work, and using
xwayland is exposing people to
https://gitlab.gnome.org/GNOME/gtk/-/issues/4136 (a gtk4 bug that is
triggered by xwayland). While it's not a mozilla problem and I can't
speak for the Ubuntu release team, it's a bit ironic that despite
efforts to avoid gtk4 bugs in Ubuntu 22.04, the Firefox snap has shipped
one anyway.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/37

------------------------------------------------------------------------
On 2022-05-18T06:13:40+00:00 Hskupin wrote:

When we upgrade our CI from 18.04 to 22.04 it would be great if we could
take care of properly setting up the font cache to not trigger a
generation for the very first start of Firefox. For all of our CI jobs
it adds another 15s and also some test jobs fail under such a condition
because the startup of Firefox takes longer than usual. I'll add bug
1670290 as dependency. Thanks.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/38

------------------------------------------------------------------------
On 2022-11-08T15:28:16+00:00 Mozilla-kaply wrote:

Where do we stand on this? I thought we were targeting October
originally.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/40

------------------------------------------------------------------------
On 2022-11-08T15:31:15+00:00 Mcastelluccio wrote:

David is working on standing up a VM, but run into some issues lately.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/41

------------------------------------------------------------------------
On 2023-03-29T10:41:09+00:00 Stransky wrote:

Folks, how do we look here? Ubuntu 18.04 (recently used for testing) is
EOL and latest nightly can't be build there due to old python 3.6. So
all test fixes/tweaks has to be done on try directly which wastes
Mozilla resources (right now on Bug 1787182 for instance).

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/42

------------------------------------------------------------------------
On 2023-03-30T08:53:45+00:00 Gpascutto wrote:

Michelle, can you provide an update here or link the bugs where that
work is happening?

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/43

------------------------------------------------------------------------
On 2023-03-30T09:06:48+00:00 Mh+mozilla wrote:

Maybe bug 1801347?

(In reply to Martin Stránský [:stransky] (ni? me) from comment #28)
> Folks, how do we look here? Ubuntu 18.04 (recently used for testing) is EOL 
> and latest nightly can't be build there due to old python 3.6. So all test 
> fixes/tweaks has to be done on try directly which wastes Mozilla resources 
> (right now on Bug 1787182 for instance).

FWIW, 18.04 has python 3.7: https://packages.ubuntu.com/bionic/python3.7

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/44

------------------------------------------------------------------------
On 2023-03-30T09:29:33+00:00 Stransky wrote:

(In reply to Mike Hommey [:glandium] from comment #30)
> Maybe bug 1801347?

Wayland is just a part of it.

AFAIK we need new testing environment to test what we already ship on
X11 - EGL, dmabuf/WebGL, disabled system titlebar etc. All "new"
features are off and we don't test them due to old setup in Mozilla
automation.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/45

------------------------------------------------------------------------
On 2023-04-03T12:34:40+00:00 Mgoossens wrote:

https://mozilla-hub.atlassian.net/browse/RELOPS-376
https://mozilla-hub.atlassian.net/browse/RELOPS-132 (perhaps?)

Now to give a little context, I was assigned to this. Then someone left, and I 
do all their Mac tasks now so I haven't looked at it (I think this is also why 
the priority was dropped.)
Julia is on PTO for a few days, so I can't ask her right now what the plan is.
I'll ping-pong the NI over to the main Linux magician at our team.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/46

------------------------------------------------------------------------
On 2023-04-04T17:23:26+00:00 Aerickson-y wrote:

This is on our radar. We're discussing in Slack #wayland-support.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1970884/comments/47


** Changed in: firefox
       Status: Unknown => Confirmed

** Bug watch added: gitlab.gnome.org/GNOME/gtk/-/issues #4136
   https://gitlab.gnome.org/GNOME/gtk/-/issues/4136

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to firefox in Ubuntu.
https://bugs.launchpad.net/bugs/1970884

Title:
  Firefox snap does not use wayland backend by default

Status in Mozilla Firefox:
  Confirmed
Status in firefox package in Ubuntu:
  In Progress

Bug description:
  Previous versions of Firefox worked with the wayland backend, with the
  latest version ( 99.0.1 ) wayland is not available and it has to use
  xwayland. This breaks the screen sharing and also the fonts are not as
  sharp as using the wayland backend.

  Nightly version 101.0a1 without snap works fine.

  ```
  Gtk-Message: 09:20:51.884: Failed to load module "canberra-gtk-module"
  Gtk-Message: 09:20:51.885: Failed to load module "canberra-gtk-module"
  [GFX1-]: glxtest: Could not connect to wayland socket
  ```

  Tested on Ubuntu 21.10 and 22.04 with the latest updates.
  --- 
  ProblemType: Bug
  ApportVersion: 2.20.11-0ubuntu82
  Architecture: amd64
  CasperMD5CheckResult: pass
  CurrentDesktop: ubuntu:GNOME
  DistroRelease: Ubuntu 22.04
  InstallationDate: Installed on 2021-06-21 (315 days ago)
  InstallationMedia: Ubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
  ProcVersionSignature: Ubuntu 5.15.0-27.28-generic 5.15.30
  Snap: firefox 99.0.1-1 (latest/stable/ubuntu-22.04)
  Snap.Changes: no changes found
  Tags:  jammy wayland-session
  Uname: Linux 5.15.0-27-generic x86_64
  UpgradeStatus: Upgraded to jammy on 2022-04-28 (4 days ago)
  UserGroups: docker sudo
  _MarkForUpload: True

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