All Products Community Forum

I am getting sick and tired of Thunderbird freezing while writing an email, screen graying out, and having to close the program and lose the material without it having been saved in any way. This has been happening for two or three weeks.

I am logged on to my Credit Union and attempt to download my statements. When using Firefox I get the message: {"Errors":["Authorization has been denied for this request."]}

When I contacted my CU, they said to add an URL to the Manage Exceptions. This worked, but I want to know why Firefox needs this but Chrome doesn't.

Hi -- I'm getting quite a few page crashes that seem mostly tied to YouTube, although not exclusively. I only recently swapped over to Firefox from Chrome because I was having similar crashing issues with that browser as well. This is after a fresh install of Windows 11 Pro and a number of different benchmark tests (no known issues with CPU, GPU, or RAM).

Since there are so many reports that all seem different, could someone help troubleshoot? I really can't tell if it's a browser problem, maybe something with my MOBO or PSU or other hardware.

bp-8849827b-dbff-4f56-ab32-a00e50251111 11/10/2025, 7:04 PM bp-b9b83d66-9ac5-4eae-9676-367000251111 11/10/2025, 7:04 PM bp-4b8e92c0-0a15-45ef-b8e1-567920251111 11/10/2025, 7:02 PM bp-4c1a61f1-674e-4da0-8921-156f50251110 11/10/2025, 12:21 PM bp-659dc04a-4933-4a3b-919b-3c1c50251110 11/10/2025, 12:21 PM bp-9387464a-bc4e-4217-995a-f457f0251110 11/10/2025, 12:21 PM bp-97bc77f5-3fa3-4623-b48b-d94e90251110 11/10/2025, 12:21 PM bp-47d723e7-4eab-41d1-b97b-410ef0251110 11/10/2025, 12:21 PM bp-58abdc4e-d959-41c9-bf0a-469280251110 11/10/2025, 12:21 PM bp-b593054f-5a6c-4693-82c8-79d410251109 11/9/2025, 6:47 PM bp-13f555f8-c219-4995-b09f-b15440251109 11/9/2025, 2:11 PM bp-91cbf8ab-d793-4781-ba28-0fd030251109 11/9/2025, 2:11 PM bp-5e7db47b-6114-4cc6-a1ac-daaca0251109 11/9/2025, 2:11 PM bp-ef240795-bedf-4c26-91f2-386ba0251109 11/9/2025, 2:11 PM bp-51ec26ab-03f0-4e0b-b199-b2f600251109 11/9/2025, 2:11 PM bp-aef18aaf-1b2e-410e-9170-99fd50251109 11/9/2025, 2:11 PM bp-e5bc73e3-293e-4b3a-8974-e088c0251107 11/7/2025, 1:38 PM bp-85a1ba73-0df8-484b-b9bb-945cc0251107 11/7/2025, 10:59 AM bp-26c84615-670b-49e8-88aa-c26ac0251107 11/7/2025, 10:59

We are currently rolling out a profile management solution based on Ivanti User Environment Manager. In order to configure file includes and excludes in the profile management tool, we have to “standardize” the Firefox profile path in the filesystem. We have implemented a PowerShell script, which reads the currently used profile from %appdata%\Mozilla\Firefox\install.ini, renames the appropriate profile subfolder to “firefox.default-esr” and replaces the entries in installs.ini and profiles.ini.

The script seems to be reliable. However, for around 10% of the users, we are seeing issues when the user launches Firefox after the “firefox profile migration” happened. Firefox opens but none of the GUI controls is accessible. Firefox is completely unusable. See screenshot attached.

We do have workarounds to resolve this issue, such as completely wiping the %appdata%\Mozilla\Firefox folder and let Firefox re-build everything from scratch. But we are still trying to find the root cause the issue, because our customers have more than 100k clients, what will be a big impact and hard to handle for the helpdesk.

We are currently unable to reproduce the issue on test clients. Even copied Firefox profile folders form affected clients don’t show the issue on other clients.

Therefore we want to find out and ask for your help:

- Is there a supported way to “standardize” the filesystem folder name of the Mozilla Firefox (ESR) profile of a user? - What are the files within a Firefox profile that are required for the profile and the application itself to properly start? - Do you have any idea which files in a Firefox profile (in a corrupted state) could cause our issue?

The tab group suggestion feature is unavailable for me, even though I am on Firefox 145.0 (64-Bit on Windows 11 Pro 25H2). I tried using guides like [one from mozilla] https://www.askvg.com/enable-or-disable-new-ai-powered-smart-tab-groups-in-firefox/ this external about:config editing guide.

The latter does changes to the about:config. A screenshot of my settings, my config, and my Add-ons is attached.

I do not know what is wrong.

Hi! So I just installed firefox and I got onto annoying issue. I like using shortcuts on my homepage, but I started to get some shortcuts added automatically and they bother me a lot. I tried removing them or deleting from history, but as soon as I click the button, one shortcuts gets removed and immediately gets swityched with another one automatically. So I'm stuck in the infinite loop of removing shortcuts and my manually added ones just get lost in all this mess.

26200.6899 - Windows 11 pro OS version 144.0.2 (64-bit) - Firefox version

After a few minutes of usage, firefox keeps freezing and crashing. Very frustrating. Seems to have started happening after recent OS upgrade.

On windows 10, I had my history setup perfectly. I had it where it saved all of my stuff all the time and I could go back and check anything on any day. Then I changed to windows 11 and now my history is a mess and I can't figuar out how to fix the problem. I am not good with computer, so make your answer SIMPLE AS POSSIABLE, please!!! Thank you.

I really do like the new vertical tabs and I have them set to be just icons until you hover the mouse over them and then they fly out and I can read the names of the tabs. My problem is that when I switch a tab or do anything that makes the tabs expand to see their full names if I take the cursor off they fly back in but if I put the cursor on any area of how far the tabs came out to in the next few seconds they come out again even though I haven't put my cursor over the tab icon. This is really annoying for forums and really for general browsing as if I switch to a tab and want to interact with anything where the tabs came out to I have to wait like 5-10 seconds before I can click anything on that part of the page or else the tabs come flying out again. Is there any way to make it so the second my cursor isn't over the tab fly out that they will go back to the compact mode and won't come back out unless I hover over the tab icon again to alleviate this problem? I find I will often switch to a tab and then move my cursor off to the page and the names collapse so there are only icons left but I try to interact with something on the left side of the page and the tabs fly out way before my cursor goes near the tab icon and I have to take my cursor to the right then try going back to interact with that element and most of the time I have to go back and forth a few times before the tabs stop flying out so I can interact with that portion of the left side of the web page. I really like the vertical tabs but I want to be able to edit the time it takes for them to not fly back out if your cursor goes to where they had flown out to immediately, so zero seconds, instead of the 3-10 seconds or whatever it is set at by default.

Thanks!

This is where you describe the issue in detail.

Explain what’s happening (e.g., “Videos keep freezing after 10 seconds”).

Mention when it started and what you already tried.

Include your Firefox version (you can find it under Menu → Help → About Firefox).

Getting too many scams sent to computer and phone. How do I block these unauthorized UPLs from getting on my computer? There a no three dots on the right side of my Firefox to get the menu to enter Options and proceed to drop down menu to hit Block. What am I doing wrong?

do know computers very well, have used firefox for all my web browsing, firefox kept crashing according to screen so it opened saved apparent older version and I lost all my bookmarks and passwords, please help

When I log into a website, say amazon.com, and it prompts me to add a passkey, my only option is local windows machine.

If I use Chrome, I can choose between Google PW manager and hardware key.

Once I save the passkey in Chrome, it works just fine in Firefox.

Is this expected behavior? I used FF for personal browsing and don't really want to move to Chrome.

Have an old list of bookmarks that was imported from an old pc running widows vista to a new HP machine that shows as a firefox document on the desktop, List is outdated and needs to be edited with deletion of some of the old listings but can't figure out how to do that ???? Any help appreciated. E mail ([edited email from public community support forum]) best for response. Thanks Ed Scott

Hi, new Firefox Win 11 user, new laptop, how do I enable main touchscreen gestures, swipe, pinch etc. All other apps, browsers work, so HW / drivers work. Can't find how on user forums, or in settings.