Many site issues can be caused by corrupt cookies or cache.

Warning ! ! This will log you out of sites you're logged in to. You may also lose any settings for that website.

• Delete cookies to remove the information websites have stored on your computer {web link}

• How to clear the Firefox cache {web link}

If there is still a problem, Start Firefox in Safe Mode {web link} by holding down the <Shift> (Mac=Options) key, and then starting Firefox.

A small dialog should appear. Click Start In Safe Mode (not Refresh). Did this help?

While you are in safe mode;

Try disabling graphics hardware acceleration in Firefox. Since this feature was added to Firefox it has gradually improved but there are still a few glitches.

How to disable Hardware Acceleration {web link}

My apologies on the late response, I appreciate the response yet I was extremely miffed when I read the response due to having tried all those methods of solving this problem. I use CCleaner to erase the cache, cookies, and a lot more; the pictures I included are juxtaposed to show safe mode on/off. I've tried the Hardware Acceleration as well; the first thing I did when I installed Firefox was follow the instructions regarding the safemode/hardware acceleration tip then I went to YouTube only to find that YouTube isn't fully functional. I forgot to mention that I used RevoUninstaller to uninstall firefox so the reinstall was fresh.

We do not recommend using other programs to clean Firefox because they could corrupt the files. Also, the browser can clean itself.

Remove History For One Site {web link}

Open the History Manager <Control> (Mac=<Command>) <Shift> H. In the search bar, enter the name of the site. Right-click on one of the listings and select Forget About This Site. This should remove all information, including any site settings

Regarding cleaning firefox, I did not know that - duly noted, thank you. I included some photos of what i did, I'm not sure if mozilla trashed firefox or what; might be time to dump firefox in the trash

At the upper-left of the YouTube page, you will see the 'hamburger' button. Press it.

I can use youtube to some degree with buttons like the 'humburger' button yet I tried reinstalling the OS. I went from build 2404 to 1909 and I still have the same problem - it's definitely mozilla firefox.

I called for more help.

FredMcD, I found something that I thought was interesting. there appears to be a browser out there that uses the firefox shell which is one of the two browsers i am currently using to use youtube and similar sites. It allows me to use youtube flawlessly which leads me to believe that whatever version of firefox this particular browser is using compared to the official mozilla firefox has some differences that is crippling things akin to youtube. i didn't want to mention the browser by name, to avoid trouble, yet if only i had the skills to compare and contrast what is different in the code between the two that is causing the disconnect when using the official firefox

Would that be Waterfox? That is an offshoot of Firefox, but not from Mozilla.

Tor Browser, i didn't know about Waterfox - when i was looking for alternatives i searched for "secure web browsers of 2020"

I have the same problem and logged it also, https://support.mozilla.org/en-US/questions/1313348

I have carried out all the recommended procedures including cookies, cache, etc and restarted Firefox with all Add-ons disabled and it still does not help with the YouTube problem.

You will see that I have tried YouTube using Edge and Chrome and everything works as it should so it is definitely a Firefox issue.

Has anyone found out why Firefox is a problem with YouTube/ I have all the problems above. I can access it and work with it in Microsoft Edge. I can access it with Private browsing. It naturally does not hold the name and password. Do you think there is a fix in the works? I do not want to clear my cache again. It is a pain doing all my logins again. This sucks. I am giving thought now to dumping Firefox not to far in the future unless a cure shows up. I cannot even find anyone to talk to about this problem.

Has anyone found out why Firefox is a problem with YouTube/ I have all the problems above. I can access it and work with it in Microsoft Edge. I can access it with Private browsing. It naturally does not hold the name and password. Do you think there is a fix in the works? I do not want to clear my cache again. It is a pain doing all my logins again. This sucks. I am giving thought now to dumping Firefox not to far in the future unless a cure shows up. I cannot even find anyone to talk to about this problem.

I may have a solution if you are running Kaspersky Antivirus. You must go into Settings>Additional>Network and untick "Inject scripts into web traffic to interact with web pages". This caused severe input delay issues for YouTube, I couldn't subscribe or comment, and I would have trouble loading pages as well. Hope this helps.