Firefox Community Forum

I usually download and install manually the custom install of Firefox on Windows.

Recently, a new version was automatically installed without my permission and destroyed all my customization. THIS IS UNACCEPTABLE. I had to restore the older version from backup and I was going to stop updating.

But I see that the manual custom installation is still available for download.

I want to make sure that if I use it it will not wipe out my customization again.

Please confirm.

On Mac OS 14.4 Firefox hangs on launch and crashes, requiring "Force Quit" when I try to Refresh or Troubleshoot. Uninstalled and reinstalled multiple times, and restarted computer several times. Have spent several hours trying multiple community suggestions to now avail.

I am not a programmer, but am able to follow instructions. I clearly need someone to hold my hand and walk me through the solution. (I even checked out the Kaspersky suggestion, but cannot install it because Firefox cannot connect to the Internet.)

I have downloaded and saved "Raw Data.docx" and "Application Basics tex.docx" from one of the crash reports.

P.S. On this question form Firefox guessed that my operation system was Mac OS x 10_15_7, but it is 14.4

Julian

Since the latest update Firefox doesn't show up in the browser list. I don't want to uninstall to reinstall because I have too many settings in my browser that I don't wish to reset. Please solve the problem.

Hi, I keep getting this error when I try to download any extension. I also get an automatic download fail as soon as I try to download anything. I have tried several solutions such as changing privileges to reinstalling firefox entirely. I have checked other browsers on my computer and it is just firefox.

Varovanie: možné bezpečnostné riziko Ako to napraviť, ďakujem Aplikácia Firefox rozpoznala problém a stránku poradenstvo-mikulas.lepsiweb.sk nenačítala. Webová stránka je buď zle nastavená alebo hodiny na vašom počítači nejdú správne.

Pravdepodobne stránke vypršala platnosť certifikátu, čo bráni aplikácii Firefox bezpečne sa pripojiť. Ak sa napriek tomu rozhodnete stránku navštíviť, útočníci sa môžu pokúsiť ukradnúť vaše informácie, ako sú heslá, e‑mailové adresy alebo čísla platobných kariet.

Čo s tým môžete urobiť?

Tento problém je pravdepodobne na strane webovej stránky a vy ho, bohužiaľ, nedokážete vyriešiť. O probléme môžete informovať správcu webovej stránky.

Ďalšie informácie…

A firefox support article told me to reinstall firefox from snap on ubuntu, without mentioning anything about the profile, settings, and bookmarks. Now everything is gone.

Is there any way to recover my local profile?

I don't think it was synced properly with my other devices

I upgraded from 126.0.1 to 127 today. Upon update, all my windows are gone. The only way I could access them is to revert to an older profile backup and reinstall 126.0.1.

I tried exporting my session with Tab Session Manager in 126.0.1 and reopen them in 127, but that only restores the last tab of each window (oddly). The json clearly lists 3 windows each with multiple tabs. I tried copying the sessionstore-backups folder, but no dice.

Symptoms similar to : https://support.mozilla.org/en-US/questions/1446921

I want to create a link in the bookmarks toolbar to easy check and update firefox In chrome I can do that with creating a bookmark to: chrome://settings/help In edge I can do that with creating a bookmark to: edge://settings/help I have search for, but cannot find the equivalent in firefox

Hi, the turbotax website forced me to update Firefox and since I did, I am no longer able to open the browser at all. The error message reads, "You can't use this version of the application "Firefox" with this version of OS X. You have OS X 10.11.6. The application requires OS X 10.12 or later." Unfortunately, from what I have read, I can't get that update that on my iMac (21.5inch, late 2009) OS X El Capitan Version 10.11.6. Is there any way to downgrade the Firefox install? I can't even see what previous version of Firefox I had before because I can't open the browser anymore. If anyone can help I would be super grateful. Thanks in advance!

i have been using Tor.browser as my default web browser on Macbook for months. Firefox is my 2nd, but two days ago, i was kicked out of Tor, cannot download/use it anymore and the reasons given are as follows:

"Tor.browser quit unexpectedly. Click Reopen to open the application again. Click Report to see more detailed information." Ignore Report Reopen (options)

when i have deleted and tried to re-install tor browser, I get the notification that

"Tor Browser quit unexpectedly". No matter what I do

 (I have since done both, obviously & have tried many other things, including trying to Time Travel, which I am not 100% sure how to yet).  the Report states Firefox is responsible for blocking Tor.  how did this happen and suggestions on how to fix.  I have to access Tor to find some pertinent files etc. I have stored there.  thanks

I have a new chromebook (Lenova Duet 3) I can install and use Firefox. I have had Dashlane (password keeper) working fine with Firefox for years. The Dashlane extensions work with Chrome, but I can't seem to get them to work with Frefox. The Chrome search engines choices are limited; ones that I never use with Firefox. Is there something in the Chromebook environment that limits firefox capabilities? (Am I looking for something that just is not possible?) Is there a work around? (Any Linux tricks?) I also have asked the same question of Dashlane, but have not heard back yet. My imperfect solution is use Chrome when it is a known website, and the password is recorded with Dashlane, and to use Firefox for new searches, where the choice of search engines is better.

Has anyone developed a search engine where there are no "sponsored" results. I understand that it would probably not be free.

After updating a W10 laptop from 115 to 116 of FF the user started having problems with getting to different websites (sites they worked on/with regularly). The problem is the cert DB. The doc I found says that it is cert8.db. Actually it is now cert9.DB.

What I had to do was go to task manager and kill a task that was holding the cert9.db file. Then I could rename it (cert9.old.db). Then restarted their laptop and FF came up and started fixing the cert file (as expected). This seems to have fixed their problem.

Firefox automatically updated itself to version 126.0 (64-bit) and it was unable to display any web sites.

First I disabled Mozilla VPN but that did not fix my issue. Next, I disabled Microsoft Defender firewall software to no effect.

Finally I updated the shortcut to Firefox on my taskbar to launch the browser. This fixed my issue.

Hopefully, this will save other users from the same pain.

My computer updated with no warning one night, and i lost all personalization and even everything stored in my firefox, the sign ins, passwords, bookmarks, all. is there a way for me to find all that was erased?

I need step by step instructions to create my NEW account, because I couldn’t enter the code to confirm my account, and now I can’t sign in , or anything. I would like to sync everything as well. Please advise. Thank you

Hi, I‘m not sure if I selected the right topic for my question but I can‘t find an answer to my query anywhere, so here goes:

When I opened Firefox on my Mac today (all up-to-date), a pop-up request by Firefox (cf. attached picture) showed up: "Firefox needs to download the font "Weibei SC". "Weibei SC" is 17,4 MB." with the options "Skip" and "Download".

Puzzled by this odd request, I wanted to skip it, but anytime I clicked skip the window would pop up again. I never clicked on download and I actually closed and reopened the browser, without having it show up again. I even restarted my device and reopened Firefox but it didn‘t show up again.

Now, I want ro believe that there is nothing to worry about, that it was a software blunder of some sort and that maybe normally it just installs fonts in the background without me knowing. But for the sake of my own peace of mind, I‘d feel more comfortable if someone who knows the software better than I do, explain to me what this was or might have been, and hopefully that it was nothing harmful.

Thank you!