Firefox Support Forum

I'm having really odd behavior using Firefox (linux) with Microsoft 365 web apps (outlook, word, excel, etc). Its happening various distros too. Is there a known issue at this time with FF and 365 web apps?

   Excel - cell content deletion on moving through cells.
   Word - line content deletion on hitting carriage return.
   Mail/Cal - Webapp not displaying content on double clicking emails or calendar events.

Found a few sporadic similar reports from users on various forums, but no official note that it was a known bug. Assuming it isn't widespread - anyone here have any anecdotal reports of similar issues. Seems to only affect the linux distro versions of FF.

This renders the web app sites unusable with Firefox so I have had to use another browser for these apps. As these apps are ubiquitous with work and productivity, it's rendering Firefox as a second-choice browser unfortunately. No one really enjoys having to "pick the right browser" for work or play.

Is there any way to resolve these issues? Hoping someone has some insight.

My Subject pretty well says it. I'm trying to transfer by syncing my desktop Firefox with the Firefox 124 on a newly installed Kubuntu on a new laptop. I have all these functions synced ON. The recent history but not the long-term history, passwords (thank heavens), and all bookmarks got transferred, but not the open tabs/pages. I've done the desktop sync followed by the laptop sync a few times, still without the tabs' transferring. How do i get those transferred?

Hi Just updated Linux Mint from 20.3 to vs 21. Firefox Help now shows FF version Mint - 001-1.0 121.0.1

Also shows that FF updates disabled by Administrator.

Is this the latest version for LM 21 ? And how do I enable updates automatically?

Thanks

Charles Harris

Hello guys, so in the past 2-3 days i started facing Cross-Origin Request Blocked for a lot of websites lets take chatgpt for example, if i visit it i get:

Content-Security-Policy warnings 2 Cross-Origin Request Blocked: The Same Origin Policy disallows reading the remote resource at https://cdn.oaistatic.com/_next/static/chunks/sso.74deac81d652476b.js?dpl=f90a861ef09abad575887be5d613ce15a4fdb6d9. (Reason: CORS request did not succeed). Status code: (null). The resource from “https://cdn.oaistatic.com/_next/static/chunks/sso.74deac81d652476b.js?dpl=f90a861ef09abad575887be5d613ce15a4fdb6d9” was blocked due to MIME type (“text/plain”) mismatch (X-Content-Type-Options: nosniff).

and its getting so annoying that its blocking a lot of websites, i tried chromium it works fine and works awesomely no cors no problems. I even tried to disable the firefox protection, dns over https on/off, change my main dns upstream, installed firefox developer, compete uninstall/reinstall, cache clear from installers and from firefox it self nothing is working. I will provide firefox developer edition troubleshooting information but keep in mind it doesnt work on both firefox normal and developer

Please any help would be appreciate it.

Firefox v124.0.2-1

After using gnome-tweaks to change my system fonts, Firefox has unexpectedly gone silent and no longer shows text in areas like the search bar, tabs, settings, bookmarks, and menus. Rendering websites works just fine, but Firefox itself won't show any text.

Hi, it has occurred to me that I lose the browsing history of tabs that were open for a long time. By browsing history i mean the sites that show up in "Go back one page" arrow. The issue is that after a website has been open for some time (this seems to be in range of days, perhaps weeks) the browsing history of that tab is forgotten and the Go back one page arrow goes blank. I would like to be able to keep this history for eternity, is there any way to enable that?

To be clear, I use the feature to save tabs of my previous sessions and also the Simple Tab Groups extension.

Thanks in advance, Alex

Wanted to export some bookmarks, and couldn't figure out why (latest Firefox) Bookmarks "Library" was missing relevant buttons/menus. (Screenshots attached.)

After testing, found they actually are there, but have have almost no contrast vs background - that is when "Manage Bookmarks" is called from a Private window. But things look fine when called from a Standard window. (No extensions; same in Safe Mode.)

Can anyone advise?

A simple workaround is to bring a standard window to the front first, but am curious if this is Firefox on all systems? Only FF Linux? Only the particular (default) settings of my Linux Mint 20.3 Cinnamon installation, and display? Not even sure a Bookmark management window is ever meant to assume the theme of the foreground window (here Private browsing's dark).

Thank you.

Am running on linux with KDE. When I press the software shutdown button in KDE, and reboot, the tabs in firefox remain, even though I disabled that from happening in settings.

I am in the habit of generating related tabs across several windows. Say, 5 windows and there might be 13 tabs that I want to organize onto one, new, window. How can I do this?

Im trying to halt fingerprint tracking, whoever designed Firefox's privacy.resistFingerprinting rule makes fingerprinting even more prevalent.

With privacy.resistFingerprinting set to FALSE, my resolution is reported : 1920x1080x24, set to TRUE its 1920x968x24

1 in 6 browsers has resolution 1920x1080x24 1 in 6000 browsers has resolution 1920x968x24

Who in Firefox decided this config rule? and what is the logic behind it? Looks like intentional sabotage to make peoples browsers more trackable.

Whilst leaving resistFingerprinting set to TRUE, How can I force my resolution to the more generic 1920x1080x24?

Is there another setting in about:config I can change? if there isnt, where can I request this feature? Id rather not resort to an extention for something so small like this.

I have firefox on both of my linux Ubuntu22.04 machines. As of yesterday, that little rounded arrow in the toolbar disappeared. I still have the forward and backward arrows and the home icon, but the refresh button is gone. It is still there on my other computer. Both have version 120.0.1 on them. Makes no sense to me.

When I open firefox for the first time or after reboot or logout the internet doesn't connect immediately and it need almost 1 minute or more. I tried so many solutions, but they didn't work. If I reset Firefox, then the problem is fixed, but after some days, it's the same problem.

I am using the latest version of Firefox on Linux Mint. I've had some flash on opening issues that I've been unable to permanently prevent. Suddenly my adblock software is not working. I tried uninstalling, reinstalling, different adblocks-no improvement. No extension software is showing on my toolbar and selecting the extensions software just brings up a suggested extensions.

I wanted to make a lengthy post on a website today, but I accidentally hit CTRL + R twice which bypassed the "This page is asking you to confirm that you want to leave — information you’ve entered may not be saved." safety net. Is there a way to deliberately disable any and all refresh shortcuts and buttons when a safety net shows up, so my buttery fingers don't ruin my day to it's absolute maximum?

I want safety nets to be deliberately annoying.

Hi,

I tried to visit the following pages in Firefox 121 (running under Arch Linux) and they took minutes to load. They loaded in a fraction of a second in Chromium. Anyone have any idea what is wrong?

The blogger page is here: https://u-blox-ninaw-platformio.blogspot.com/2022/03/u-blox-nina-w-e-platformio-arduino.html

Here are a few forums that take minutes to load, I think they use the same engine as I see the same colorful loading animation: https://community.platformio.org/t/error-please-specify-upload-port/26218 https://forum.manjaro.org/

Does anyone have any idea what is happening or what I should do to alert the development team? Are these sites using technology not implemented in Firefox?

Best Regards,

Kevin

I accidentally used wrong disk when downloading a big file. So my primary disk, where I'm running OS became 100% full. Then I removed this big file, checked that disk is not full anymore, and tried to download again, this time choosing the right disk, but now the Firefox internal file browser, where we open files, and select folder to download is broken, pointing wrong location when selecting disk/folders. I tried restarting OS, reinstalling firefox, but it's internal file browser is still broken. In Chrome it's ok, in system file explorer is ok, problem occur only with Firefox. I'm using Pop!_OS 22.04.

Is there a way I can reset this internal file browser to work properly again?

Please provide a native way to change the behaviour of Ctrl-W. I tend to switch between aZerty and qWerty keyboard layouts, as a result I sometimes hit ctrl-W when I would like to ctrl-Z some change. As a result I tend to lose some work when the tab I'm working in closes. It would be nice to be able to rebind some of the default key combinations, or at least disable them.

I found a method description that edits the omni.ja file, but also that this method is unsupported. Moreover, running ubuntu kind of rules this out as an option, as canonical has ruled that firefox is to be installed via snap, in a read-only data store.

Hi All I have firefox 123.0.1 and don't have widevine! my OS is NetBSD 10 what's the best/easy'ish way to add this as channel 4 & 5 UK broadcaster require widevine installed and I can't find in the add-ons widevine!!!!

I want to remove the top toolbar. I actually use the plug-in called “New windows without toolbar” for this, but I have to activate this plug-in by clicking on it every time. I want the toolbar to not appear at all when Firefox first opens, how can I achieve this?

Sorry for English..