Diễn đàn hỗ trợ Firefox

.: Hello. A couple of days ago Firefox stopped displaying thumbnails of YouTube videos. I tried YouTube on other browsers and the thumbnails appeared as usual. On Firefox, they've disappeared, but only on my Windows 10 computer. The YouTube thumbnails appear on Firefox on my MacBook. The attached graphic shows what it looks like on my Win 10 computer.

Any ideas on how to solve this would be greatly appreciated. I have also searched the Internet and YouTube for a solution, but was unable to find one that works.

Thank you.

Hi After browsing a particular web site the Firefox browser froze with a single search control on the page and all items frozen. Tried to fix it through settings but no response. See attached screenshot. Refreshed Firefox from Control panel->Programs and Features->Uninstall->Refresh Firefox. This reset Firefox and fixed the problem however the Firefox browser lost several settings and add-ons which I had to manually fix. Glad it is mostly all working again!

When I am scolling and the mouse hits an image, a large image preview appears. How on earth do I turn this off? I can see tab preview images to turn off but not this stupid image previre thing that covers everything I am trying to read or navigate on the web site.

Thanks very much M

Hi everyone, I'm asking for help following the latest update (Firefox 143.0.1): the corners of the top site preview boxes have changed, as shown in the first screenshot. I was wondering if it's possible to permanently restore them to the same state as in the second screenshot, perhaps via userContent.css.

RESTORE A TRUSTED RECIPE SITE banned by Mozilla: recipestonourish.com  !

I have been using this site for years. This morning Mozilla ruined it. Please restore, thank you!!

Carla van Raay [edited email from public]

Perth Western Australia

The keyboard shortcut to take screenshots [Ctrl + Shift + S] used to work a few weeks ago but it has stopped working for quite a while now. Doesn't work on any site, I can only create screenshots by right clicking and pressing the button manually.

After signing into Amazon with firefox 43.0.1 (64-bit) browser on my mackbook I am not able to click on anything in firefox. I have to quit firefox and restart it before I can do anything. The even happens in a private window. Safari has no problems.

I have Firefox (always updated to the latest version) and I have noticed a memory leak that EATS up RAM. I have 1 tab open, playing a set spotify playlist. within 24 hours of rebooting the machine, Firefox has swallowed 7gb of my Memory as shown in Activity Monitor/Memory Pressure. I've been having this issue for some time, updates to MACos make no difference either. NO other program does this. I've tested the same playlist in other browsers, Chrome, Safari, uses 1gb, brave/opera uses less than 500mb and they've been open for over a week. This memory leak is a bug in Firefox. I've seen it before (other software, mainly on Windows) but never like this on a Mac......How do I escalate this?