All Products Community Forum

Firefox 146.0.1 crashes every time upon launch (basically fails to launch), even in troubleshooting mode, with exception code 0xc0000005. Prior to today, it was working fine. Windows does not show any updates made over the last couple of days. I am on Windows 11 25H2, and I'm current with updates. Chrome works. Edge works. I logged on to the same computer as a different user (different profile folder in the user AppData folder) and Firefox still does not work. I tried to refresh Firefox and that did not resolve the issue. I tried to uninstall and reinstall Firefox and that did not resolve the issue. I tried to run DISM and SCANNOW and that did not resolve the issue. No issues are detected with a virus scan. I am stumped - please help!

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've searched other forums and I am not having any luck. If I open 1 Firefox browser then 10-15 open instances will show up under Task Manager. They load automatically. This slows down everything and I have to delete the excess browsers. Would you please offer some advice? Thank you in advance.

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.

Hi,

am running firefox 127.0.1 on a windows 11 desktop. Numerous sites that use a captcha to login fail. In other words, the captcha never loads and I cannot login to those sites. Such sites include teamfaderpro, Coursera, and bandcamp. All logins fail as the captcha is required to be passed prior to logging in, but the captcha never appears and so when I try to log in, nothing happens and I cannot login.

I have tried the above same sites on the Edge browser and have no such issue, the captcha shows and I can login.

Just FYI, the agent switcher setting change recommended by others previously is not suitable. When I tried that fix I was unable to access a considerable percentage of the internet due to some cloudflare issue, so the agent switcher setting is not an option. So far, I have tried all recommended settings to fix this issue and nothing has worked.

I am surprised no one else is having this issue.

Any help is appreciated, or at least inform google/mozilla about this issue as it has been ongoing (on and off) for me for many months. And yes, this problem is persistent for me at the moment, it remains despite rebooting windows, despite clearing cookies and cache (which I have set to automatically delete when exiting firefox).

I'm trying to add the world cup tracker to my home screen, but when i click the link, it just puts me in my new tab page with no changes. When I click the pencil edit icon, widgets are not an option for me. Is there a place I need to enable them?

I wanted to use the new VPN feature and the icon initially showed up in the top right, but it has disappeared and is not present in "customise toolbar" or privacy settings either.

i have been using this email address [email 1 removed] and it wont let me to sign in or reset password i do have another email address which is no longer use its been hacked ([email 2 removed]) is it possible to change the email address to [email 1 removed] so i can continue using that email [email 1 removed]

thanks

Hi. Now that the 'Open Link in Split View' has annoyingly replaced the spot previously held by 'Open Link in New Window' i keep clicking on it accidentally (muscle memory).

I don't want to have to retrain my muscle memory, but despite creating css file generated by Claude that should in theory remove the option, and putting it the Profile Folder, it will not go away.

How do i remove it?

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).

I receive this Error msg trying to access Settings option in the AJC epaper section https://editions.ajc.com/shortcode/AJC412/edition/f117d96a-c78b-4df3-4b6a-0e587f6cfd22 on a Firefox Browser:

Application error: a client-side exception has occurred (see the browser console for more information).

After clicking the "Set up free VPN now" button, the explanation page with the individual steps appeared, but I couldn't complete the process because the setup prompt was not visible in the browser.

Hello!

I started using Thunderbird quite recently. After an unsuccessful installation, Thunderbird deleted it, as well as deleted the profile folder. In order to perform a clean installation of the program.

But after installation, Thunderbird started, to my surprise, already with accounts, and even with add-ons installed. I have not found an answer to my question about the complete removal of the program on the Internet. The only article found from this resource turned out to be without text: just the title. Here is the link to it: https://support.mozilla.org/en-US/kb/uninstall-thunderbird.

As a result, I cleaned out the entire registry, as well as all the folders found by the search. And only after that it was possible to install Thunderbird cleanly. In my experience, such deep cleaning has a detrimental effect on the Operating System. And I want to avoid this in the future.

Can you tell me how to remove Thunderbird from your computer COMPLETELY? What exactly should be deleted?

(This is a machine translation)

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

I have Firefox 136.0.2 (up to date) on Win 11. I want to remove specific autofill items, NOT all autofill items. Web info says use Settings > Privacy & Security > Forms & Autofill BUT there is nothing for Forms and Autofill in my Firefox 136.0.2

Can anyone please help me find how to edit autofill in this version?

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.

how to add Yahoo search as default search engine if Yahoo is missing on Firefox Search. on Search setting i can see different engines Google, Bing, Ebay, etc. but there is no Yahoo.

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?