That upstream bug sounds indeed similar to the problem you're observing, but given that it's closed, it's unlikely to receive attention. Can you file a new upstream bug report and share the link to it here?
-- 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/1915498 Title: Copy / paste in Firefox randomly broken Status in firefox package in Ubuntu: New Bug description: 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. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1915498/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
