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On 2021-07-16T12:30:49+00:00 antheo wrote:

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:89.0) Gecko/20100101
Firefox/89.0

Steps to reproduce:

Open a context menu (right click) on firefox 90 or later with
"gfx.webrender.compositor.force-enabled" on true


Actual results:

The menu is transparent, like in this picture :
https://www.casimages.com/i/210716014609220532.png.html


Expected results:

The context menu should not been transparent.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/0

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On 2021-07-16T12:32:02+00:00 antheo wrote:

The problem is still here on the actual nightly.
Here is a link of my about:support : https://pastebin.com/Z1mL80jx

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/1

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On 2021-07-16T13:18:21+00:00 Release-mgmt-account-bot wrote:

The [Bugbug](https://github.com/mozilla/bugbug/) bot thinks this bug
should belong to the 'Core::Graphics: WebRender' component, and is
moving the bug to that component. Please revert this change in case you
think the bot is wrong.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/4

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On 2021-07-16T20:51:30+00:00 Dmalyshau wrote:

Thank you for filing and attaching the about:support!
IIRC, context menus are rendered with software WR. So the issue is either that 
the output of rendering contains alpha of full transparency, we we don't expect 
it, or that the alpha compositing mode on the surface (responsible for the 
context menu) is configured incorrectly, which is more likely what's happening.
Lee, is that reasoning sound? Pinging you since you are involved in the sw-wr.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/5

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On 2021-07-16T21:00:23+00:00 Lsalzman wrote:

Does the problem only happen if you use the force-enabled pref? Are you
using X11, or are you using Wayland?

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/6

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On 2021-07-16T21:13:03+00:00 Robert Mader wrote:

>From the description and comment 1 this appears to happen with the
experimental Wayland compositor backend.

antheo, you seem to have quite a few experimental features enabled.
Could you try running with a fresh profile and only
`gfx.webrender.compositor.force-enabled`? And do I understand correctly
that the issue only happens with `gfx.webrender.compositor.force-
enabled`?

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/7

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On 2021-07-16T21:42:49+00:00 antheo wrote:

Hi,
I use wayland, and the problem is still here with a fresh new profile, so it's 
not gfx.webrender.compositor.force-enabled related, sorry.
Thanks for your help!

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/8

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On 2021-07-16T21:46:27+00:00 Robert Mader wrote:

Thanks, that's good to know. Do you maybe happen to use a non-standard
gtk theme? I recall having seen similar bugs when people do that.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/9

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On 2021-07-16T21:53:07+00:00 antheo wrote:

Yes, I was using a non-official theme!
It worked great in 89 though, do you think there is a chance that it will work 
in future version or do I have to change my theme?
Thanks a lot for your help

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/10

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On 2021-07-16T21:54:36+00:00 Robert Mader wrote:

(In reply to antheo.lerouzic from comment #8)
> Yes, I was using a non-official theme!
> It worked great in 89 though, do you think there is a chance that it will 
> work in future version or do I have to change my theme?
> Thanks a lot for your help

Emilio, do you have an idea here?

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/11

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On 2021-07-17T02:38:16+00:00 B-emilio wrote:

I mean, a transparent context-menu is always a bug, so we should fix it,
yeah.

Which gtk theme are you using?

Also, does it work on [Nightly](https://nightly.mozilla.org)? This
reminds me of bug 1709719, but it was fixed on time for 90 so...

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/12

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On 2021-07-17T12:13:31+00:00 antheo wrote:

I was using Minwaita, the bug was still here with nightly.
Thanks

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/13

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On 2021-07-17T12:28:36+00:00 B-emilio wrote:

Alright, will take a look, thanks!

To be clear with other gtk themes this is not an issue, is that right?

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/14

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On 2021-07-17T12:55:51+00:00 antheo wrote:

It's not an issue with White-sur theme, but maybe other gtk theme have
the same problem.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/15

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On 2021-07-19T08:51:49+00:00 B-emilio wrote:

Created attachment 9231873
Bug 1720874 - Try to find menupopup background with :backdrop pseudo-class. 
r=stransky


This theme only styles menus with menu:backdrop (which always seems to
match for context menus).

Try that before giving up. Also, fall back to the window background if
that would ever fail (which seems better than just rendering
transparent).

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/16

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On 2021-07-19T08:53:38+00:00 B-emilio wrote:

Comment on attachment 9231873
Bug 1720874 - Try to find menupopup background with :backdrop pseudo-class. 
r=stransky

### Beta/Release Uplift Approval Request
* **User impact if declined**: Transparent context menus with some GTK themes.
* **Is this code covered by automated tests?**: No
* **Has the fix been verified in Nightly?**: No
* **Needs manual test from QE?**: Yes
* **If yes, steps to reproduce**: Install Minwaita theme from 
https://github.com/godlyranchdressing/Minwaita. Right click anywhere.
* **List of other uplifts needed**: None
* **Risk to taking this patch**: Low
* **Why is the change risky/not risky? (and alternatives if risky)**: Simple 
fallback rather than ending up with a transparent color.
* **String changes made/needed**: none

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/17

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On 2021-07-19T20:32:20+00:00 Pulsebot wrote:

Pushed by ealva...@mozilla.com:
https://hg.mozilla.org/integration/autoland/rev/0f7a29399878
Try to find menupopup background with :backdrop pseudo-class. r=stransky

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/18

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On 2021-07-20T02:49:14+00:00 Jpjensen500 wrote:

I am running a GTK 2.0/3.0 theme under MATE on Arch, and I started
noticing this as well with the 90.0 update. (The theme in question is
called "Platinum" and is designed to emulate the look of classic Mac
OS.) I was wondering if my theme got corrupted or something, but I
stumbled across this bug report. I'm glad I did, because I was just
looking at the resource files to figure out what happened.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/19

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On 2021-07-20T09:54:09+00:00 Aryx-bugmail wrote:

https://hg.mozilla.org/mozilla-central/rev/0f7a29399878

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/20

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On 2021-07-20T09:57:36+00:00 Pascalc wrote:

Comment on attachment 9231873
Bug 1720874 - Try to find menupopup background with :backdrop pseudo-class. 
r=stransky

Looks low risk, approved for 91 beta 5, thanks.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/21

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On 2021-07-20T10:09:18+00:00 B-emilio wrote:

Comment on attachment 9231873
Bug 1720874 - Try to find menupopup background with :backdrop pseudo-class. 
r=stransky

### Beta/Release Uplift Approval Request
* **User impact if declined**: Transparent context menus with some gtk themes.
* **Is this code covered by automated tests?**: No
* **Has the fix been verified in Nightly?**: No
* **Needs manual test from QE?**: Yes
* **If yes, steps to reproduce**: see above
* **List of other uplifts needed**: none
* **Risk to taking this patch**: Low
* **Why is the change risky/not risky? (and alternatives if risky)**: More 
fallback colors.
* **String changes made/needed**: none

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/22

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On 2021-07-20T10:09:40+00:00 B-emilio wrote:

(If we do a dot-release, this patch might be worth pulling in)

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/23

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On 2021-07-20T10:16:14+00:00 Pascalc wrote:

https://hg.mozilla.org/releases/mozilla-beta/rev/33952cdec057

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/24

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On 2021-07-21T14:12:29+00:00 Julien Cristau wrote:

Comment on attachment 9231873
Bug 1720874 - Try to find menupopup background with :backdrop pseudo-class. 
r=stransky

approved for 90.0.2

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/25

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On 2021-07-21T17:53:25+00:00 Julien Cristau wrote:

https://hg.mozilla.org/releases/mozilla-release/rev/3d2ddaa563e7

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/26

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On 2021-07-22T08:14:07+00:00 Anca-soncutean wrote:

Reproduced with Fx 90.0 and Fx 91.0b4 on Ubuntu 18.04.
Verified fixed with Fx 92.0a1 (21-06-2021), Fx 91.0b5  and Fx 90.0.2 on Ubuntu 
18.04.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1936647/comments/27


** Changed in: firefox
       Status: Unknown => Fix Released

-- 
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/1936647

Title:
  right-click popups transparent after upgrade to Firefox 90

Status in Mozilla Firefox:
  Fix Released
Status in firefox package in Ubuntu:
  Fix Released

Bug description:
  Upon upgrade to Firefox 90, right-click popups appear transparent.
  I am using the Blackbird gtk theme. If I switch to Adwaita-dark, the problem 
goes away.
  I encountered this issue on another system with the direct download from 
Mozilla, so this is likely an upstream issue, but I'm not sure where to begin 
filing that.

  ProblemType: Bug
  DistroRelease: Ubuntu 20.04
  Package: firefox 90.0+build1-0ubuntu0.20.04.1
  ProcVersionSignature: Ubuntu 5.4.0-77.86-generic 5.4.119
  Uname: Linux 5.4.0-77-generic x86_64
  AddonCompatCheckDisabled: False
  ApportVersion: 2.20.11-0ubuntu27.18
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC2:  kjotte     1155 F.... pulseaudio
   /dev/snd/controlC0:  kjotte     1155 F.... pulseaudio
   /dev/snd/controlC1:  kjotte     1155 F.... pulseaudio
  BuildID: 20210705185941
  CasperMD5CheckResult: skip
  Channel: Unavailable
  CurrentDesktop: XFCE
  Date: Fri Jul 16 08:35:02 2021
  DefaultProfileExtensions: extensions.sqlite corrupt or missing
  DefaultProfileIncompatibleExtensions: Unavailable (corrupt or non-existant 
compatibility.ini or extensions.sqlite)
  DefaultProfileLocales: extensions.sqlite corrupt or missing
  DefaultProfilePrefErrors: Unexpected character ',' before close parenthesis @ 
/usr/lib/firefox/omni.ja:greprefs.js:352
  DefaultProfileThemes: extensions.sqlite corrupt or missing
  ForcedLayersAccel: False
  InstallationDate: Installed on 2020-07-07 (373 days ago)
  InstallationMedia: Xubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
  Profile0Extensions: extensions.sqlite corrupt or missing
  Profile0IncompatibleExtensions: Unavailable (corrupt or non-existant 
compatibility.ini or extensions.sqlite)
  Profile0Locales: extensions.sqlite corrupt or missing
  Profile0PrefErrors: Unexpected character ',' before close parenthesis @ 
/usr/lib/firefox/omni.ja:greprefs.js:352
  Profile0PrefSources: prefs.js
  Profile0Themes: extensions.sqlite corrupt or missing
  Profiles:
   Profile1 (Default) - LastVersion=None/None (Out of date)
   Profile0 - LastVersion=90.0/20210705185941 (In use)
  RunningIncompatibleAddons: False
  SourcePackage: firefox
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 03/29/2021
  dmi.bios.vendor: LENOVO
  dmi.bios.version: N2WET27W (1.17 )
  dmi.board.asset.tag: Not Available
  dmi.board.name: 20UAS0P200
  dmi.board.vendor: LENOVO
  dmi.board.version: SDK0J40709 WIN
  dmi.chassis.asset.tag: No Asset Information
  dmi.chassis.type: 10
  dmi.chassis.vendor: LENOVO
  dmi.chassis.version: None
  dmi.modalias: 
dmi:bvnLENOVO:bvrN2WET27W(1.17):bd03/29/2021:svnLENOVO:pn20UAS0P200:pvrThinkPadX1CarbonGen8:rvnLENOVO:rn20UAS0P200:rvrSDK0J40709WIN:cvnLENOVO:ct10:cvrNone:
  dmi.product.family: ThinkPad X1 Carbon Gen 8
  dmi.product.name: 20UAS0P200
  dmi.product.sku: LENOVO_MT_20UA_BU_Think_FM_ThinkPad X1 Carbon Gen 8
  dmi.product.version: ThinkPad X1 Carbon Gen 8
  dmi.sys.vendor: LENOVO

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