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When checking out the new features the ' Learn More' link under Tab Groups directs to the article explaining Pinned Tabs, there is no way to get to the explanation about Tab Groups

Dear Developer,

Please add an option in Settings to select a default external download manager (e.g. 1DM+, ADM, etc.) for all downloads. Currently, Firefox shows the "Download file with" chooser every time. It would be much more convenient if users could enable an "Always use selected external downloader" option, so downloads are sent directly to the chosen app without displaying the chooser each time. This would make downloading faster and provide a smoother user experience. Thank you for considering this feature.❤

Hello,

I'm encountering a highly frustrating issue with Firefox. Even though the "Open previous windows and tabs" option is checked in my settings, it is completely ignored on startup. Firefox systematically opens to a blank tab or home page.

Here are the key details and what I've already checked:

• The Ctrl + Shift + T shortcut works perfectly: This proves Firefox is saving my session and history; it's only the automatic loading on startup that is being blocked.
• In about:config, the preference browser.startup.page is correctly set to 3.
• My privacy settings are standard: Firefox is set to "Remember history" and the "Clear history when Firefox closes" box is unchecked. I am not in permanent Private Browsing mode.
• The Windows shortcut I use to launch Firefox is clean (no forced URL at the end of the target path).
• I close Firefox cleanly via the menu, and I've verified that no ghost processes are stuck in the Task Manager after closing.

It makes no sense since the parameter is hardcoded but gets bypassed on launch. Is there a specific file (sessionstore or otherwise) that could be corrupted and blocking the automatic load without blocking the manual restore?

Thanks in advance for your help, I'm out of ideas!

Hopefully, this gets you a fast and highly technical answer. Hang in there!

Moderator note: This question has been edited to correct the formatting.

The way you use VPN is you can either have it turned off, or turned on with exceptions you can put in a list. I'd like to be able to do the opposite, have it mostly turned off, except for some websites that require one to view. This is a QoL feature I would like in a future update.

plz guys help me my eyes hurt so bad because of this

every time i open firefox for pc, a white flash appears very quickly

i tried every thing ai told me to, but still

i cant even record it it doesnt appear in video

Hello: Suddenly when I go to click on a hyperlink in the body of an email, nothing happens. (I might see the pinwheel for a few seconds, but that vanishes and nothing is opened).

I am using: Firefox 152.0.5 (64-bit) Windows 10 Roadrunner email through Spectrum

Is this a Firefox issue or an email issue? Thanks in advance for any help!

I utilize a website called Twinspires for wagering on horses. It has a video popup (no sidebar tabs) that one can engage to watch the race outside of the Firefox browser. I quite like this feature. That said, I keep quite sidebar tabs saved as I use that feature to pin and then revisit websites that I want to spend more time on. Problem: If the browser closes on its own or other issue, it doesn't close the video popup. So when I restart the browser it "thinks" that video popup, with no saved sidebar tabs, was the last browser open so I lose all my saved sidebar tabs. If everything Firefox would close when the browser does, one could restore all tabs under history like one would normally do. Is there a setting so everything Firefox that is open closes when the browser does? Thank you.

Hello Mozilla Team,

I am facing a glitch that is as hilarious as it is frustrating. Firefox has decided that my professional life must permanently take place under a massive, virtual Apple Park Rainbow. And I cannot turn it off.

The Tragic Backstory: This is the system-level macOS camera background. Usually, you disable it via the green camera icon ("pill") in the macOS menu bar. However, the moment Firefox accesses my FaceTime HD camera, the macOS camera menu completely freezes. It becomes unclickable.

What I’ve tried so far (and failed):

   Google Meet says "No effects applied". It has no idea the rainbow is even there.

   I used "Refresh Firefox" to completely wipe my profile. The rainbow survived.

   I forcefully revoked camera permissions via Terminal (tccutil reset Camera org.mozilla.firefox). Upon granting permission again, the rainbow immediately returned from the dead.

   Restarted the Mac multiple times. No change.

   Even opening the native FaceTime app to override the toggle failed, because Firefox seems to have locked the video pipeline down.

It seems Firefox is caching or hard-locking the macOS video effect stream and won't release it, while simultaneously breaking the OS-level menu bar toggle.

I love rainbows, but my clients during business calls are starting to wonder about my sanity. How do I force Firefox to drop this video stream and let me return to reality?

Hi.

I'm having trouble with https://support.mozilla.org/en-US/kb/linux-security-warning?as=u&utm_source=inproduct#firefox:linux:fx140.

It assumes the installation is at "/home/<USER>/bin/firefox/{firefox,firefox-bin,updater}" but mine is "/home/<USER>/.local/share/torbrowser/tbb/x86_64/tor-browser/Browser/firefox.real".

How exactly do I edit the line?

(Latest Ubuntu. I also have Librewolf and Firefox, but didn't see the warning as on Tor.)

Samuel

Subject: Firefox Sync appears to have erased all bookmarks after setting up a new Windows installation

Hello Mozilla Support,

I believe I have encountered a Firefox Sync issue that resulted in the loss of my entire bookmarks collection.

Here is exactly what happened:

I have been using Firefox Sync for several years without any issues. This was not my first Windows reinstallation. I have restored Firefox through Sync multiple times before. Firefox Sync had always synchronized bookmarks, passwords, history, extensions and open tabs correctly across my Windows PC and Android phone. I had approximately 350 bookmarks, organized into folders. Timeline Yesterday I performed a clean installation of Windows 11. I installed Firefox 152.0.5 (64-bit). I signed into my existing Firefox Account. I did not immediately enable Sync, so nothing was synchronized at that point. Today I enabled Sync and waited for the synchronization to complete. Passwords synchronized successfully. Browsing history synchronized successfully (it took a little longer). Extensions were restored successfully. Bookmarks never appeared.

Immediately after noticing this, I checked Firefox on my Android phone.

At first, one of the bookmark folders still showed that it contained more than 300 items (I saw the item count), but when I opened the folder it was completely empty. After synchronization finished, all bookmarks disappeared from both devices.

Additional information Browsing history is still present. Saved passwords are still present. Extensions are still present. Open tabs synchronization continues to work. Bookmark synchronization is enabled. I am signed into the correct Firefox Account. The second local Firefox profile is empty. The automatic bookmark backup now contains only the current state (7 items), indicating that the original backup has already been overwritten. The current profile contains both places.sqlite and places.sqlite-wal. The only Sync error log is related to a temporary DNS lookup failure (NS_ERROR_UNKNOWN_HOST) and contains no bookmark synchronization errors.

Because history, passwords and extensions synchronized correctly, this does not appear to be an account or authentication problem.

What concerns me most is that I briefly saw the bookmark folder still reporting over 300 items on Android before it became empty. This makes me suspect that something went wrong during bookmark synchronization rather than the bookmarks simply never existing on the server.

Could you please advise:

Is there any server-side recovery or investigation that can be performed for Firefox Sync bookmark data? Are there any diagnostic logs that I can provide? Is this a known issue with Firefox Sync after connecting a newly installed device?

I would greatly appreciate any assistance, as this bookmark collection had been accumulated over many years.

I have a Sync error log available: error-sync-1783454370913.txt

It only contains a DNS error related to tabs synchronization: NS_ERROR_UNKNOWN_HOST

There are no bookmark-related errors in the log.

Thank you.

Hello I just filled out a pdf and the font or writing came out blue I want it in black is there some where in Firefox i can get it in black w font or writing please Advise thank you

I’m using the latest stable Firefox package from the official Mozilla repository for Ubuntu, on a system with 32GB of RAM.

I’m also using Microsoft Teams for work calls, in the browser (because Linux) and I notice that Ubuntu has killed the FF process twice last week because it was using too much memory - see attached image. I’ve only had 4 or 5 Teams calls last week so this isn’t a great success rate. It seems that after half an hour or so, FF has hogged so much memory that the OS feels the need to kill it.

If this is a known issue: are there any known workarounds?

If this is not a known issue :Can I help by providing troubleshooting data? How?

Thanks in advance!