Error message appears when I open Mozilla - ''Youtube High Definition: TypeError: aId is undefined 1174''. How can I get rid of it?
This error message is suddenly appearing in just the last couple of days each time I open Mozilla: Youtube High Definition: TypeError: aId is undefined 1174.
How can I get rid of it? When I click on ok it goes away and Mozilla works fine, but the error message is annoying and I want to fix it.
I'm on a brand new Macbook Pro running El Capitán 10.11.
All Replies (1)
Start Firefox in Safe Mode to check if one of the extensions (Firefox menu button/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.
- Switch to the DEFAULT theme: Firefox menu button/Tools > Add-ons > Appearance
- Do NOT click the Reset button on the Safe Mode start window
- https://support.mozilla.org/kb/Safe+Mode
- https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
You can reload web page(s) and bypass the cache to refresh possibly outdated or corrupted files.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 cookies only from websites that cause problems.
"Clear the Cache":
- Firefox/Tools > Options > Advanced > Network > Cached Web Content: "Clear Now"
"Remove Cookies" from sites causing problems:
- Firefox/Tools > Options > Privacy > "Use custom settings for history" > Cookies: "Show Cookies"