منتدى دعم ”Firefox“

Can I have more than one bookmark toolbar at the top of the screen? I am a teacher and I have at least 12 maths bookmarks I would like to display as well as my standard / personal bookmarks.

For several months I have been experiencing very frequent tab crashes and overall freezes in Firefox. I have tried removing all extensions and starting in safe mode, but nothing has solved it. I have reinstalled Firefox and updated all of my drivers. There doesn't seem to be any pattern to what causes the crashes and freezes. They can happen any time and on any website. They happen around 5 times an hour. I do not know how to troubleshoot any further.

Hi, for about 14 days I get random certificate warnings - even on well known websites. They vary from SSL_ERROR_BAD_CERT_DOMAIN to SEC_ERROR_UNKNOWN_ISSUER... even on websites like x.com or LinkedIn. At the same time I got a new router from my ISP. But I am not sure, if this is connected somehow or if I got a Man-in-the-Middle or a virus. Malwarebytes & Co don´t find anything. I have resetted Firefox, too. But nothing helps. I get these errors in Chrome, too, sometimes. But not as often. Any ideas anybody? TIA!!!

I am getting "Secure Connection Failed", Ive seen literally hundereds of same error also exist here. Like most of default solution (which is below) did not work for me. My laptops time is correct, And I highly doubt reddit and most of internet has issue with its security certificates. And other browser works just fine. So What is my solution other than immigrating to new browser?

https://support.mozilla.org/en-US/kb/secure-connection-failed-firefox-did-not-connect?as=u&utm_source=inproduct

I went to settings and then to privacy and security and tried to find auto fill to remove credit card info. I couldn't find the setting the browser told me to find.

In early May I started having problems with Google on Firefox. Sometimes the Google home page won't load up at all. Once it does load up sometimes the searches work, sometimes the search just times out and goes back to the empty search bar, also when I click on links to websites they time out too. If I go straight to a bookmarked website, that seems to free things up and the next Google search I do will work. I've uninstalled and reinstalled Firefox but it doesn't make any difference. Google works fine on Chrome and Edge. Any advice would be gratefully received - please note I'm not technically minded! Thank you.

i need some help with my firefox browser. all of a sudden my firefox browser wont download any files from anywhere but if i try to use the save image as on an image firefox would download them. weirdest thing is other browsers are fine when downloading files.

Didn't have this problem before but after a couple days ago, I didn't know what changes happened to my computer but most of the program wouldn't work except I have to run it as administrator. The download problem occurred when suddenly my FF always froze no matter if I closed it or not. So I just refresh my FF and copy my profile from the old backup data that FF generated and just pasted all of them on my new profile. The problem is that after I tries to download warcraft 3 maps from google drive, the download always occurs as failed. I don't have this problem when I tried it with Edge. Running FF as admin doesn't worked either. Neither as when I run FF as refresh without any extension. Downloading stuffs with IDM (Internet Download Manager) does not have any problems. Just now, I try to download a .xlsx files from my workplace websites. After I click on the download or the file itself, nothing occurs as if nothing happened. This is giving me a headaches so I came here to give it a try if anyone can help me fix this problem.

Hello,

I am experiencing an issue related to the Vanguard anti-cheat system used by Riot Games, specifically in relation to League of Legends. After installing the game and Vanguard, I am unable to open Firefox. When I try to launch Firefox, nothing happens. However, if I change the name of the firefox.exe file, I can start Firefox on a different profile, but it only works for a short period before becoming unresponsive. None of the options or tabs respond after that.

Could you please provide assistance on how to resolve this issue?

Thank you.

The Find in Page feature is not working in my build of Firefox Nightly. Application Basics

Name: Firefox Version: 128.0a1 Build ID: 20240602210803 Distribution ID: Update Channel: nightly User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:128.0) Gecko/20100101 Firefox/128.0 OS: Windows_NT 10.0 22631 Launcher Process: Enabled Multiprocess Windows: 3/3 Fission Windows: 3/3 Enabled by default Remote Processes: 10 Enterprise Policies: Inactive Google Location Service Key: Found Google Safebrowsing Key: Found Mozilla Location Service Key: Found Safe Mode: true Memory Size (RAM): 31.8 GB Disk Space Available: 685 GB Pointing Devices: Mouse

When I try to open a what may be a link in a page, which should bring up a PDF file, I think, I get the following:

Firefox Can’t Open This Page

To protect your security, api.medicare.gov will not allow Firefox to display the page if another site has embedded it. To see this page, you need to open it in a new window.

Learn more…

When I click on the Open Site in new Window button I get a new window with the following:

message "Unauthorized" context {} code null

Hi Forefox dosent show cookie content pop ups for some webpages. Have tried loading the same webpages with Edge, and a pop up is shown, whwere i am asked which cookies i would allow.

Have cleared the cahe/cookie, started up in secured mode, deleted profiles (made an search on firefox/Mozilla and deleted all files) and reinstalled firefox but the problem persist.

It started a month ago, just like that, Have changed pc, to a new one, and from windows 10 to windows 11, still the same.

Help would be nice, thank you.

I am trying to add an mp4 video to my website using the following code:

<video width="320" height="240" controls>
  <source src="images/###.mp4" type="video/mp4">
</video>

where ### is the name of the video file. I get the following error message:

"No video with supported format or MIME type found."

In the console the following is displayed:

"Media resource http://127.0.0.1:5502/images/###.mp4 could not be decoded. video.html All candidate resources failed to load. Media load paused. video.html Media resource http://127.0.0.1:5502/images/###.mp4 could not be decoded, error: Error Code: NS_ERROR_DOM_MEDIA_METADATA_ERR (0x806e0006)"

Runs just fine in Chrome and I have no pop-up blockers installed. Autoplay is set to be allowed for all websites.

Windows 11 version 23H2. Firefox version: 126.0 (64-bit)

My PC froze and had no choice but to reload win 10. After doing so I had the choice to download win 11 for free which I did. When I download Firefox all of my bookmarks were missing. I have tried to follow your instructions to retrieve them i.e. Troubleshooting... Application Basics ... Profile Folder...Open Folder... which opened >>> C:\Users\AppData\Roaming\Mozilla\Firefox\Profiles\42o9xo83.default-release . Sadly, I am not a Teckie and I do not have a clue what the next move is to get my bookmarks back.

Can you please help me to get my bookmarks back. Thank you MM

PS... (I have deleted my username for security)

duplicate of /questions/1448898 thread.

When attempting to install a "clean" verison (delete old, install new) I get an error message about using the firefox removal tool. Where do I get it and how do I remove the old one and install a newest version?

When attempting to install a "clean" verison (delete old, install new) I get an error message about using the firefox removal tool. Where do I get it and how do I remove the old one and install a newest version?