Alle produkte Community Forum

Firefox lived on my computer for three days. On May 30th I installed the latest version of Firefox Developer Edition. Today when I launched my browser I saw a page notifying me that my version of Firefox is the latest [152.0b6 (64-bit)]. All installed extensions disappeared, the connected profile was deleted, the .mozilla/firefox directory contained only the newly created profile... No history, no bookmarks... No crash reports...

What happened? Now I'm afraid to sync the browser with my phone, in case it clears all my passwords.

I'm trying to open a file that was sent to me, but my computer is asking me to update Firefox. When I try to do that, it shows that I already have the most current update.

The Firefox update I was prompted to initiate on May 12 resulted in a compatibility issue message. Following Firebox Help recommendations, I re-installed my Firefox. Now I see that my downloads folder has a long string of unfamiliar files, and I need assurance that these are not remnants of malicious activity. All files have names like i-33639-002-XX.jpg and are dated the same time (5/12/2026, 4:07 PM). Each file shows as “0 KB” in size. All are listed as “JPG File”. Has this happened to other Firefox users?

After the last update on my desktop browser, my password was requested in order to "install a new helper tool." But it isn't accepting my password, even after I double checked what it was. And there's no Change Password link.

Since I can still access the Firefox browser on my iPhone, I thought of I'd change my password there and sync, but the new password isn't accepted either. Once a password isn't accepted, pressing cancel closes the app and it can't be reopened without a Force Quit first.

And 'round and 'round I go. How do I regain access to my desktop browser?

Thanks.

The plugging is NOT updating and it's blocking me from watching anything on streaming. I've tried triggering the update by turning it on and off, by tugging on and off the "DRM" option in settings, by turning off the updates and then looking for updates... I went to about:config and made sure that all options were "true". What I get is an "error in downloading the update" that I can't fix.

Can someone help?

I am getting the message "updates are disabled by the admin." I am the only one here so I don't know how that happened. I need to install Slack but need to update first. I followed the steps to edit registry but still can't update. Please advise.

Hello, I have Windows 7 and I use Firefox ESR as my browser. It has work correctly for years now, but since a couple of days it has problems with downloading the latest updates. It asks me download the update but as I go into the settings page, the download is stuck at 0 kB. I also get a message box that FF is not able to download the update and it sends me to a Mozilla Firefox ESR download page and when I want to download the ESR version, FF cannot open the page with the installation file. Also many other links on the Mozilla page do not open or do not open correctly. Also it doesn't open this support page, I am writing this messages through my phone. Also it doesn't open the website bol.com. So what can I do. I have already tried clearing the cache and cookies. It doesn't help. I hope you can help.

How do I update Firefox on my rand McNally tablet When I factory reset it ,it went back to the original version and I can't get it to update to the version I had beforehand

Firefox no longer allows me to delay updates. Twice in 2 weeks, all of my cookies were blown away during the Firefox installations of 150.0.0 and 150.0.1. I have 8 Google Email Accounts - all forgotten and no longer accessible. The same is true for Yahoo finance; banks; and the myriad of other sites I use daily. I checked this morning, and all sites visited before 150.0.1 was installed (against my will), have zero cookies. Only sites visited after the installation of 150.0.1 have cookies. This is a tiny subset of cookies I rely on for daily use.

This makes Firefox useless. I can't spend hours trying to recover from untested software every two weeks. Until this is fixed, I have to switch to Chrome or Edge.

I'm running Windows 11 Pro..

I have deployment firefox 148.0.2 version from SCCM, its on autoupdate. So, when it is pushing to machine and during launch its giving prompt " You have launched olderversion of firefox ". even though i have cleared old version or any other version and then pushed still giving same prompt. We need to remove this prompt from appearing to users. kindly suggest how to fix

I want to upload the current version of Firefox. However, the system Administrator (who is me) will mnot allow me to do so. How do I change settings to allow for the upload.

On 2026-04-15 from about 10:00 CDT on, I have not been able to update Nightly nor Firefox Developer Edition (Aurora). Both of them notify me that there is an update available, and when I click on Help -> About Firefox I get the usual panel that gives me the update ID to click on. Clicking on it tells me it's Downloading Update -- 0 bytes, and it never flashes the expected size of the update, never shows progress, and never completes. It seems to be acting as if the update server is out of commission.

I am running Firefox 149.0 (64-bit) on Windows 10. FF tells me that there is an update. I downloaded the update, and when I restart FF, it does not update. Version 149.0 is re-started, and Help --> About Firefox again tells me to restart to upgrade. I have tried the upgrade at least three times.