103 update breaks video playback.
Both Youtube, gfy, reddit, or playing any mp4 in browser becomes erratic, sometimes it wants to work, sometimes it doesn't. Simple as explained.
Twice I did a w10 system restore back to v.102 and playback is normal. Twice i update to 103, and playback becomes botched. sometimes videos work, sometimes they don't, no loading, then sometimes background loading for minutes but no play, very random, very erratic.
So now i have 103 update blocked to avoid this problem.
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See:
- https://support.mozilla.org/en-US/kb/fix-video-audio-problems-firefox-windows
- https://support.mozilla.org/en-US/kb/fix-common-audio-and-video-issues
- https://support.mozilla.org/en-US/kb/html5-audio-and-video-firefox
You can check for issues with Total Cookie Protection.
- https://support.mozilla.org/en-US/kb/total-cookie-protection-and-website-breakage-faq
- https://support.mozilla.org/en-US/kb/introducing-total-cookie-protection-standard-mode
If you use extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) that can block content (Adblock Plus, NoScript, DuckDuckGo PE, Disconnect, Ghostery, Privacy Badger, uBlock Origin) always make sure such extensions do not block content.
- make sure your extensions and filters are updated to the latest version
- https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems
Firefox shows a purple shield instead of a gray shield at the left end of the location/address bar in case Enhanced Tracking Protection is blocking content.
- click the shield icon for more detail and possibly disable the protection
You can check the Web Console for relevant-looking messages about blocked content.
- https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-desktop
- https://support.mozilla.org/en-US/kb/smartblock-enhanced-tracking-protection
- https://support.mozilla.org/en-US/kb/trackers-and-scripts-firefox-blocks-enhanced-track
You can try these steps in case of issues with webpages:
You can reload webpage(s) and bypass the cache to refresh possibly outdated or corrupted files.
- hold down the Shift key and left-click the Reload button
- press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
- press "Command + Shift + R" (Mac)
Clear the Cache and remove the Cookies for websites that cause problems via the "3-bar" Firefox menu button (Settings).
"Remove the Cookies" for websites that cause problems:
- Settings -> Privacy & Security
Cookies and Site Data: "Manage Data"
"Clear the Cache":
- Settings -> Privacy & Security
Cookies and Site Data -> Clear Data -> [X] Cached Web Content -> Clear
- https://support.mozilla.org/en-US/kb/clear-cookies-and-site-data-firefox
- https://support.mozilla.org/en-US/kb/how-clear-firefox-cache
Start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or userChrome.css is causing the problem.
- switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Themes
- do NOT click the "Refresh Firefox" button on the Troubleshoot Mode start window