You tube videos in the early afternoon are extremely slow in the Firefox browser
If I switch to any other browser, I do not have the same problem. I can watch the video without any pausing. But if I switch back to Firefox, the video will start, but in a few seconds, the video (and the whole page) will freeze, but the audio will keep playing. I could understand if it was my provider throttling youtube videos in high traffic time periods, but on other browsers the problem does not appear, so it has to be related to Firefox. The only difference between Firefox and my other browsers are the add-ins I have in Firefox. However, I have removed the Ad-Blocker Youtube add-in to see if that is the issue, and regular ad-blocker is disabled on Youtube. Not sure what is causing the issue. Please assist.
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Hi, please update to version 61 if you not already, Help --> About Some changes that may help.
Since no info came regarding any other reaming Extensions please : Try Firefox Safe Mode to see if the problem goes away. Firefox Safe Mode is a troubleshooting mode that temporarily turns off hardware acceleration, resets some settings, and disables add-ons (extensions and themes).
If Firefox is open, you can restart in Firefox Safe Mode from the Help menu:
- Click the menu button
, click Help 
and select Restart with Add-ons Disabled.
If Firefox is not running, you can start Firefox in Safe Mode as follows:
- On Windows: Hold the Shift key when you open the Firefox desktop or Start menu shortcut.
- On Mac: Hold the option key while starting Firefox.
- On Linux: Quit Firefox, go to your Terminal and run firefox -safe-mode
(you may need to specify the Firefox installation path e.g. /usr/lib/firefox)
When the Firefox Safe Mode window appears, select "Start in Safe Mode".
If the issue is not present in Firefox Safe Mode, your problem is probably caused by an extension, theme, or hardware acceleration. Please follow the steps in the Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems article to find the cause.
To exit Firefox Safe Mode, just close Firefox and wait a few seconds before opening Firefox for normal use again.
When you figure out what's causing your issues, please let us know. It might help others with the same problem.