Firefox Community Forum

Through extensive troubleshooting, I am unable to get firefox to open at all.

I've done a full uninstall, cleaned all user directories, program files / x86, program data, appdata roaming and local, etc. I used the Microsoft uninstaller and even Revo Uninstaller to remove everything related to Firefox, did a restart and reinstall of the latest one and it still won't launch.

Firefox was previously working until a reboot occurred and now it won't launch.

Firefox 32 bit seems to work when installed, and running Firefox as an admin previously worked but no it no longer does.

I looked at the following articles: - https://support.mozilla.org/en-US/kb/firefox-wont-start-find-solutions - https://support.mozilla.org/en-US/kb/profile-manager-create-remove-switch-firefox-profiles - https://support.mozilla.org/en-US/kb/profile-manager-create-remove-switch-firefox-profiles#w_start-the-profile-manager-when-firefox-is-closed

There's no malware on this machine (business EDR on it, even disabled it as a test and it still didn't open).

I was able to launch the profile manager but now I am unable to as the processes launch in task manager and then within 5 seconds they close.

Firefox is not running in the background for any user (I'm the only one logged in after a reboot as well)

I'm unable to open in troubleshoot mode either. Tried run as and admin cmd "C:\Program Files\Mozilla Firefox\firefox.exe" -safe-mode

Ran SFC / scannow / DISM restore health commands as well and both came back fine / no integrity violations

Everytime I load Firefox the bookmarks sidebar is not shown.

Navigating thus View => Sidebar => Bookmarks I can bring it up. It will stay visible for the whole of my browser session. However, after I've closed this session and started another. the bookmark sidebar is missing again.

How can I make the bookmarks sidr be available all the time?

FF 127.0.2 OS Windows 11 Pro v 24H2 Build(26100.994).

For over a month now i have a problem with youtube. It loads videos very badly. I have good connection speed, but 0 network activity and 0 buffer health in Stats For Nerds on youtube and videos dont load. I can wait for 10-15 minutes (but sometimes they load almost instantly) before video load 40 sec buffer and after that buffer ends i can wait for another 10 minutes befor it load buffer again.

This problem persist only in my firefox on my computer. I tried deleting all the extensions, reinstalling firefox, "refresh firefox" future, changing useragent, reinstalling windows (it was the time anyways) but it doesnt solve the problem. I dont have this problem in other browsers (edge, librewolf, chrome) on my computer.

OS: win 11 x64 Firefox 127.0 x64

like the subject says the video on disney plus is very choppy/blurry/not 4k like it should be can u guys look into it? the video is blocky and blurry on firefox but not on chrome for some reason and id like to fix it soon

How do I remove a shortcut from the Firefox address bar? I understand that I can "uncheck search, address bar, and shortcuts" in Firefox settings, but I think this just hides them, so I wanted to solve the problem fundamentally and asked for advice. Please tell me how to completely remove shortcut URLs from the address bar.

Today (06/12/2025) upon opening a new tab, Firefox slid the new option of uploading a custom picture to apply to the background. Tried the new feature, now I can not find the setting that allows me to change the picture. I read the thread "Customize your wallpapers". The instructions are as follows; You can personalize your Firefox New Tab page by adding one of the available wallpapers. Follow these steps:

  1. In the right corner of the New Tab page, click the gear IG settings icon.
  2. In the customization panel, under the Wallpapers section, you will see different categories like Solid colors, Abstract and Photographs.

       Click the category you prefer. For example, selecting Abstract will show a variety of abstract designs. 

The problem I have is the customization panel is no where to be seen, I have click on EVERYTHING possible, it is not in my settings, why? How do find this?

Firefox doesn't have my new credit card account number. My old card was compromised and replaced with a new card and account number. But Firefox still maintains my old account number and it insists on auto-filling my cancelled card number when placing an order on line. How do I update my credit card information, or how do I delete the cancelled card number?

I searched how to disable any random new AI features Firefox was about to cram into the browser.

I was served this support page that says I can "Block new and current AI features (single switch)"

Simply, the described feature to disable AI features isn't in the settings. I've look and tried searching for "Block AI enhancements" & "AI controls" but no luck.

Please tell me they haven't given the writing of support pages to some shitty LLM.

Hello, I am no longer able to sign into my Apple iCloud account and tools (Mail, Calendar, Notes, etc) through my Firefox browser. The problem started this past Friday, and it happening on both my home office and work laptops. When I switch to my Microsoft Edge browser on the same 2 laptops, I am able to sign-in to my iCloud account and tools without any difficulty. So it is not a problem on the Apple iCloud side. I am able to access my iCloud account and tools/apps from my iPhone and my iPad as always. It is only when I try to login from a Firefox browser window that I get a "Failed to Verify Your Identity" error message.

I have encountered PR_CONNECT_RESET_ERROR for the last few days. All websites cannot be accessed. I tried to uninstall/reinstall Firefox several time and nothing works. My system is Windows 11 Home, Version 22H2, Installed on 2/7/2023, OS build 22621.4037. Kaspersky Anti Virus is 21.3.10.319(m).

"Przeglądarka jest zarządzana przez Twoją organizację " taka informacja jest po zainstalowaniu przeglądarki - była ona przyczyną dla której na jakiś czas odinstalowałem Firefoksa gdy sie pojawiła po kolejnej aktualizacji. Co to znaczy ? Jestem osobą prywatną i nie chcę by moja przeglądarka była przez kogoś administrowana. Jak usunąć tę "Twoją organizację" z MOJEJ przeglądarki z Mojego komputera?

Hello, directions to change locations on weather app, At the top left of the New Tab page, hover over the weather information and click the configuration icon IG page actions.

   Click Change Location.
   Enter the new location in the field and select the desired location from the drop-down. 

I don't get a change location option in the menu.

What to do?

Thanks, Billy

my extensions got unpinned and the new tab button is gone, the tab overview is gone, the extension button is to the left of the address bar, the back and forward buttons are to the left of the address bar, the back and forward button are swapped, WHY.

In the screenshot i pinned the 3 extesions i use again, they were unpinned before

I use Free Download Manager v3.97 along with FF Free Download Manager extension v3.22 to download files from Easynews.com. This issue may have nothing to do with Firefox except that the problem started a couple of days ago about the time 1.46.0 was installed.

When I right-click to download a video file, FDM is configure to automatically start the download. But downloads are not starting automatically now. FDM just shows the download with an hour glass figure. I have to manually stop then start the download.

Window 11 PC.

I have tried the suggestions as described in the following article: https://support.mozilla.org/bm/questions/1273784 However, am still having the issue. It's as if the settings are totally ignored. I am using version 108.0a1 of Firefox developer edition. Ideally what am trying to achieve is away to disable all features of ETP. I figured setting it to custom with all values unchecked would have done the trick but it's not working. What works is if I add the site to the list of Exceptions for Enhanced Tracking Protection, then I will see all Ads loaded just fine on the page. However, this is not viable for me as I have a large list of sites that I visit, and I need to see the ads on them.

Does anyone know of a way to get around this feature in FF?

Is there another setting am missing from the previous article?

Each day I get an email from Microsoft OneDrive with photos of the day, titled On this day"'. Clicking on a button titled "View all memories" on the email causes the photos from that day to appear as a new tab on Firefox. Perfect. Until a couple of weeks ago.

At that time, clicking on it caused the new tab to appear but no photos are displayed. The screen looks as if it's trying to load the pics, but nothing shows up. When I open up the OneDrive website directly, I can click on "Photos" and see ALL photos in my cloud account, and there is also a row at the top under the title "For You" which shows several clickable buttons titled "September <XXX>", "A new trip", "Revisiting <month XXX>", "Last week", etc. Clicking on each of those separately yields the same result as when I clicked on "View all memories" from the original email, which is that nothing is displayed but it appears to be trying.

Below the "For You" row is "All Photos" sections which has everything, but not organized like the "For You" row. It simply is the entire set of my pictures from which the "For You" buttons do their selection from.

I exchanged emails with the MS OneDrive support over several days, who made numerous suggestions, but none worked. We did determine, though, that the photos do appear seamlessly if I switch to Edge as the default browser, but I want Firefox as my default.

Because the photos did appear under a different browser, they suggested I contact Firefox, which I'm doing. And this is after I've tried all the suggestions contained in a google search I entered as: "firefox setting to allow microsoft onedrive photos of the day".

Understandably, I'm very frustrated and appreciate any suggestions anyone can provide. Thank you.

I just installed Firefox. What I noticed right away while using it was that fonts were very blurry/hard to read on all web pages, and even in firefox's menus and URL bar.

I attached two pictures, one is a screenshot in Firefox, and the other is a screenshot in Brave. (All chromium web browsers I have tried don't have firefox's font problem)

The release notes for Firefox version 140.0.1 indicate the extension button can can now be removed from the toolbar.the noes say:

"Firefox Extensions: Customize your toolbar with the option to remove the extensions shortcut, giving you more control over your browser. When the button is hidden, you can access the extensions panel again at any time from the Firefox menu by clicking the Extensions menu item."

I still cannot drag the button down and out of sight by customising the toolbar.

Suggestions welcome.

I don't know what happened, I haven't been tinkering with anything. This happens for every video, not just this one. I've also posted my addons as well, in case that helps with anything.

Hello. This question concerns the Windows 11 desktop version of Firefox.

I have long used the Home and End keys on my extended keyboard to scroll to the very top of any given page in Firefox (Home) or to the very bottom of that page (End).

But, lately, I notice that, for no reason I can figure out, Firefox no longer responds to those shortcuts. Now, when I tap Home or End, the page may, at first, scroll up or down slightly but not to the top or bottom. If I press Home or End again, nothing happens at all.

Sometimes, if I press Ctrl + Home simultaneously or Ctrl + End the page will scroll to the top or bottom respectively.

Why has Firefox's behavior apparently changed? Is there an issue with my keyboard or operating system settings? (I use a Logitech G915 keyboard.)

Please let me know how to restore Firefox's shortcut functionality, where I can tap just Home to scroll to the top of a page or only End to scroll to the bottom of a page.

Thanks and be well.