Firefox Community Forum

Whenever a Firefox extension connects to a particular native application for the first time, a dialog opens that looks like the attached.

I've pressed "cancel" on this prompt.

Where are the "privacy settings" I can use to revert this ? Nothing in the "Privacy & Security" section looks like it, and there's nothing in the "about:extensions" sections either.

Background is a little complex. We have been running Win 10 under the ESU, My wife had her box unintentionally do a Win 11 update. She then started a backup which then looked like it would take days, so she aborted it after a while and ran the procedure to revert to Win 10, which then completed successfully. I think she then rebooted and opened Firefox and all her prior windows were there and working, After a while they got slower and slower, so she closed Firefox, might have rebooted and restarted Firefox. She now has 37 windows that are all completely blank. There is a New Tab tab and now URL in any window,

Is there any way that would likely recover all those open windows? Or, at least the URLs of all the tabs?

I have four identity containers (container tabs) that I need to open simultaneously all the time, but doing it manually one-by-one is tedious. I want to create a one-click launcher via the command line that starts all four container tabs at once, yet I couldn’t find any switch for it in the help page I checked: https://wiki.mozilla.org/Firefox/CommandLineOptions. My Firefox version: Firefox Nightly 149.0a1. My Operating System is Windows 11

I rebooted my laptop to find that Firefox removed all of my data. I looked up for ways to fix this and then arrived at the conclusion that I could create a profile and set the folder to one of the profiles that weren't listed on Firefox. It seemed to save my history correctly and my saved downloads, but they all said that they were moved or missing. I checked the passwords and instead of the long list of passwords that I normally have, there were only a couple, and the passwords were also sometimes outdated. I cannot recover some of these passwords. I've tried checking the passwords in the other profiles that were listed in the profiles and nothing shows up. None of the cookies were saved either

Attn: Customer Support

  Firefox is currently my "default" browser.  I am running the most current updated Firefox browser.  I am using a desktop iMac with OS of Tahoe 26.1     
  It appears since the latest few updates (on Firefox) over the last week or so, I can no longer log in to my online banking.  I am able to enter my username and password (I'm using the 1Password app on this desktop and my iOS).  After entering my username and password, the progress wheel just spins and spins and nothing further happens.  The screen just sits there and does not progress to the next webpage allowing entry to my banking.  I know that it is a problem with the Firefox browser.   When I log in to my online banking using Chrome, I have no issues, it logs right in.  
  What is going on?   Please advise.  I'm thinking about ditching Firefox and going with Chrome or Safari.

Thanks for your assistance Dennis Ontario, Canada

I have discovered Major problem with Firefox which affects the use of my btinternet.com email account . Since the recent update I am no longer able to add the contact name to a new email which I wish to compose automatically from my contacts (I am required to type it in full. I can still do it, with the shortcut of typing in the first 3 letters, when using other browsers such as Google or Edge or the Outlook muti mail account service but generally prefer Firefox. If this situation prevails I will ditch Firefox as speed of communication and addressing is of the essence to me. Are Firefox aware and are they correcting things?

Could any settings have been altered by the update - which contribute to my problem?

Hello, I just completed a wipe of my whole device, beforehand I obviously signed up and synced up my Firefox account to keep my boomarks and data. After reinstalling Firefox I managed to sign in, sync up and get my bookmarks back - great. However after reopening of the app they were gone again and when checking back-ups the only available one was from after the "automatic wipe". I quickly checked my mobile Firefox app as well - it still showed a bigger of number of bookmarks so I had hoped they stayed at least there but after entering the folder they appeared empty and then gone completely after re-entering. Please if possible assist, it seems like Firefox decided to overwrite this data so maybe it's still somehow recoverable as these bookmarks have been collected over the years. Thank you in advance.

firefox suddenly stopped showing any history or book marks. also no history. i've re downloaded, no change. all works well with chrome but i like firefox. and thoughts?

Hello. I'm having trouble using a password manager or auto script function within that password manager. It says please enable JavaScript within your browser. I use Firefox as my default browser. This is not the only time I've been asked to enable JavaScript. When I go to do so, Java is already enabled. So I can't figure this out without your help. Thank you

Hello,

I can't save and download a modified PDF file.

To put it simple: I open a PDF file on Firefox; Rotate it clockwise; Open the Tools menu (»); Click Save; The saving window opens; I save the file; When I open it, the file is as at start, before rotating.

Windows 11 25H2 26200.7623, Firefox 147.0 Thank you for helping.

Recently Mint upgraded my FF to v147 - possibly relevant, possibly not. There's no post mentioning anyone having this issue on the Mint forum though.

In my Settings, "Open previous windows and tabs" is definitely enabled, but it doesn't happen. I only get my homepage custom URLs.

I went into troubleshooting mode and FF then behaves.

So I figured the issue must be with an extension - but I disabled all my extensions, and it doesn't help. Only going full troubleshooting mode fixes it.

What do I do next please?

Hi

I am looking to transfer apps and programs from an older desktop(running windows 10) to a new desktop(running windows 11)

i missed the deadline to change my primary email on firefox from cox.net when i try to add a secondary email, the verification code is being sent to the cox.net email account which is no longer active or accessible. The yahoo.com email which inherited the cox.net email accounts had a deadline which i missed as well The best solution would be a manual override to add another email as my primary email for my firefox account. this would be on the browser currently residing on the older(windows 10) computer...Please advise if this is possible alternatively, is there a way to open a new firefox account ? if so, would the cleaner install be a new firefox browser on the newer(windows 11) computer ?

The goal is to migrate bookmarks, set up a live primary email account and transfer saved passwords. manual entry can happen if needed but a file trasnfer of the firefox program in its entirety would be easier

Please advise and send email response to [edited from public] @gmail.com The current email, [edited from public] @cox.net is the disabled email now...

a few days ago I received a message that i had an upgrade from Firefox. After that I can't find the bookmarks I had saved for paying bills as well as other important items.

Every video i watch is not centered on my screen i tried everything thinking it was on my end but if i try it on chrome and edge everything is fine. Note that only the left and upper side has a space when in full screen the right and bottom are ok In the second image it's on youtube and may appear a bit more clearer

Environment:

  Windows 11 Pro, Version 25H2, Updated windows (include KB5074109) on Jan 16, 2026.
  Firefox version 107.0  

Issue:

  Firefox freeze shortly (e.g. after play YouTube video for less than a couple minutes, just browser YouTube videos for a while, or just open about:preferences page).
  
  I installed  Firefox 147.0.1. Same issue. 

  Hover cursor to Firefox, it becomes busy (blue spinner)

  Note: Firefox works fine before the windows update. Chrome exits suddenly after the update too.

Task Manager: shows 15 FireFox processors with 0% CPU usage.

Event Viewer: Fault bucket 1541027055463960799, type 5 Event Name: AppHangB1 Response: Not available Cab Id: 0

Problem signature: P1: firefox.exe P2: 147.0.1.271 P3: 696a121b P4: 79cd P5: 67246080 P6: P7: P8: P9: P10:

Attached files: \\?\C:\ProgramData\Microsoft\Windows\WER\Temp\WER.2bcf31a5-033f-4855-91a8-348910b535af.tmp.WERInternalMetadata.xml

These files may be available here: \\?\C:\ProgramData\Microsoft\Windows\WER\ReportArchive\Critical_firefox.exe_a06ac11b8d36ddc3afaf533a3621d865d77465b2_0c016577_0f9df051-1632-43c0-8b21-1bdd35f2b339

Analysis symbol: Rechecking for solution: 0 Report Id: 4ecd169f-49c4-4d96-bd8d-324fc999200b Report Status: 268435456 Hashed bucket: 26b5c866fc91a78be562d3f1363210df Cab Guid: 0

WER.f4147c4f-eeb0-4620-a50a-da8b248e2de1.tmp.WERInternalMetadata:

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