[Bug 1915498] [NEW] Copy / paste in Firefox randomly broken

[Julien Olivier]

Public bug reported:

Most of the time (but not always), when i copy content from an
application (for example Gedit) to Firefox, the pasted content doesn't
match what was copied. If I then try to paste in another application,
the right content is pasted.

I have to copy / paste the same content several times before the right
content finally gets pasted to Firefox.

ProblemType: Bug
DistroRelease: Ubuntu 20.10
Package: firefox 85.0.1+build1-0ubuntu0.20.10.1
ProcVersionSignature: Ubuntu 5.8.0-43.49-generic 5.8.18
Uname: Linux 5.8.0-43-generic x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.20.11-0ubuntu50.5
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC1:  juloliv    5429 F.... pulseaudio
 /dev/snd/controlC0:  juloliv    5429 F.... pulseaudio
BuildID: 20210204182252
CasperMD5CheckResult: skip
Channel: Unavailable
CurrentDesktop: GNOME
Date: Fri Feb 12 09:22:04 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:353
DefaultProfileThemes: extensions.sqlite corrupt or missing
EcryptfsInUse: Yes
ForcedLayersAccel: False
InstallationDate: Installed on 2020-02-07 (370 days ago)
InstallationMedia: Ubuntu 19.10 "Eoan Ermine" - Release amd64 (20191017)
IpRoute:
 default via 192.168.2.1 dev wlp2s0 proto dhcp metric 600 
 169.254.0.0/16 dev wlp2s0 scope link metric 1000 
 192.168.2.0/24 dev wlp2s0 proto kernel scope link src 192.168.2.22 metric 600
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
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:353
Profile0PrefSources: prefs.js
Profile0Themes: extensions.sqlite corrupt or missing
Profiles:
 Profile1 (Default) - LastVersion=None/None (Out of date)
 Profile0 - LastVersion=85.0.1/20210204182252 (In use)
RunningIncompatibleAddons: False
SourcePackage: firefox
UpgradeStatus: Upgraded to groovy on 2020-10-22 (112 days ago)
dmi.bios.date: 06/28/2019
dmi.bios.release: 5.14
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: X570DD.300
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: X570DD
dmi.board.vendor: ASUSTeK COMPUTER INC.
dmi.board.version: 1.0
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK COMPUTER INC.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrX570DD.300:bd06/28/2019:br5.14:svnASUSTeKCOMPUTERINC.:pnVivoBook_ASUSLaptopX570DD_D570DD:pvr1.0:rvnASUSTeKCOMPUTERINC.:rnX570DD:rvr1.0:cvnASUSTeKCOMPUTERINC.:ct10:cvr1.0:
dmi.product.family: VivoBook
dmi.product.name: VivoBook_ASUSLaptop X570DD_D570DD
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK COMPUTER INC.

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug groovy wayland-session

** Bug watch added: Mozilla Bugzilla #1438136
   https://bugzilla.mozilla.org/show_bug.cgi?id=1438136

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Title:
  Copy / paste in Firefox randomly broken

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