Firefox Support Forum

How do block a fake recurring alert?

App: Ads.fiancetrack(2).dll

Threat Detected: Trojan Spyware Access to this computer is blocked for security reasons. Please contact Microsoft Support: 855-752-1661

I have a PC that cannot access the Internet. Using a thumb drive, I was going to download Firefox then load it onto the PC. Do you think this will work and if so, how do I put Firefox on the thumb drive (be specific - step by step). Thank you

After the latest update (Monday) my Lastpass extension icon disappeared from the extension toolbar. It was still listed in the Add-ons and themes page. How do I get it visible again? I've tried to right click the Lasspass icon but "pin it" does not appear. I've deleted the extension, rebooted and reinstalled with no difference.

I have looked around the Internet for similar issues, but most of them appear to address the moronic F11 full-screen problem. I'd be grateful to know if a 'tabs bar' option remains in FF126, and if so, how to enable it. Many thanks.

This isn't the first time this has happened. After each occurrence, I have to completely uninstall the browser and reinstall it from scratch. This means I have to reopen all my tabs, which is very annoying. In Chrome, I have had a large number of tabs open for many years and it works fine.

With Mozilla, something terrible is happening... I have many tabs open in Mozilla, and there comes a moment when, upon launching the browser and opening two or three tabs, Mozilla starts consuming up to 10 gigabytes of RAM. If I open a few more tabs, the browser crashes. I don't need to open 50 or 100 tabs, just 7-8-10 tabs are enough to make the browser crash. Moreover, if I open a new tab and go to google.com, the browser takes a very long time to load, even if it's the second tab.

This problem has happened before. I don't do anything with the browser, just visit sites like YouTube.

Clearing the cache and other recommended actions do not yield positive results. This is very annoying. Mozilla is my first and favorite browser, which I have been using for almost 20 years. I wouldn't want to uninstall Mozilla.

A few days ago I started having an issue where Youtube videos 1440p and up would frequently skip ahead, stutter or freeze and play audio only. They also stopped loading as quickly as they had before. This issue only happens in Firefox as when I watch Youtube on Chrome everything is fine. I've tried disabling extensions to no effect. Is this a known issue or does anyone have suggestions?

I used Firefox Developer Edition and yesterday saw that a new extension released for using Chrome web api to search and duckduckgo as one and had to test it "DuckDuck Chrome"... I have since had keneral level drivers registered, IP addres ls directly connecting, every one of my files scanned and index and still I'm getting logs for connections from the same IP's that were using kernal calls to bypass me seeing whats going on... at one point they did a lernal call and changed the requested package power.

There were enough things ran from 5am pst today till 4pm pst today I have exporting the log file for multiple hours and it only has a tray icon telling me it's still creating it as the context was to large to be seen or queried in the Event Viewer itself (error 1734).

I had downloaded a couple of pdfs from google drive via private browsing which were stored in my 'Downloads' folder. But as soon as I closed the window the pdfs were deleted. I had also downloaded a zip file which wasn't deleted.

Hello when i am on facebook,and i want to do a video chat or a call chat it now tells me that video or voice calling is not supported by this browser,yet it was all working fine about a week ago and i went to do a video call two days ago and now i can't,i have no idea what has happened regards mark

Hello. I have an issue with Firefox. Last week Facebook stopped showing images when run on Firefox. These are in the Feed and photos, etc. I tried refreshing, clearing cookies, history and cache. I changed enhanced tracking but nothing stops this. Are there any suggestions to repair this or could it be a bug? I work on Windows 10. Please help.

Thank you.

Hi there!

I'm trying to troubleshoot why firefox isn't connecting to my DNS over HTTPS instance running adguard home. Every other device (including another laptop) is able to set the DNS over HTTPS and connect successfully - but my desktop PC instance gets NS_ERROR_CONNECTION_REFUSED. Despite multiple reboots, ipconfig /flushdns, release/renew, etc...

Even my android phone is able to connect to it using the "private dns" feature (uses port 853 instead of 443).

I've been able to verify https access to the DNS server and it's querying successfully. It's just this one instance it won't connect.

Hello, all the sudden, news site comments don't show and after research here I learned it might be enhanced protection tracking settings. I tried all the settings and nothing seems to work well (not tech savvy). Strict = user comments blocked and all the other settings allow so many ads they cover content and/or there are a hundred on a page. On a desktop. Any suggestions would be appreciated. Thank you very much.

I have scoured the web and read/tried everything. I cannot remove the time and date stamp from my documents. No matter what program/app they are printed from it shows up ruining my printing. I've tried unchecking the header/footer box. There's nothing in my brother printer set up regarding the date/time stamp. It has to be firefox. How do I fix this? I'm not a computer guru so I need details. I'm at my whits end! Thanks!

Hello All,

Since my Firefox browser has many issues these days, I tried to reinstall it but forgot to leave the box next to “Remove My Firefox Personal Data and Customization” unchecked when I proceeded with the installation.

I don't have any manual backup of my Window 11 system or bookmarks / passwords stored on Firefox. And all Firefox folders now have a last-modified time later than the time when I clicked the installation file. Thus, I guess my bookmarks / passwords stored over the past two years are forever gone. But I would like to make sure that it is really the case so that I can move on and start feeling better.

I understand it was completely my careless mistake. But your kind feedback would really, really be appreciated.

Thanks!

My Firefox recently updated to version 124.0.2. Afterwards my taskbar shortcut broke, so I pinned a new one manually (right-clicked Firefox in start menu > open file location.) When I opened Firefox it had reset the primary profile to be default, so I changed it back to my BetterFox profile. Since then I've run into several oddities, such as Firefox crashing when it's running in the background, getting an error saying "Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window," when I try to open it, invisible shortcuts in my taskbar(see image) and my bookmark visibility resetting from always to only in new tab every time I start up Firefox. Please help me.