Macintosh OSX-Firefox 4 -Youtube -videos don't play . I downloaded & install Flash Player. It doesn't show in plug-ins. Safari wks fine.
SOLVED:
When I got to a video on Youtube, the page shows, but the video controls and the video don't show/play. This is after I upgraded to V4.
EDIT: Seem to have javascript problem too. See my last post for fix.
Bewurke troch Old MacOSX86 Guy op
Alle antwurden (2)
(german) ich habe ein macbook pro. wenn ich die grafikkarte umschalte auf intel statt nvidia funktioniert es.
letztendlich habe ich eine lösung gefunden: profil-ordner neu anlegen. das alte profil muss zuerst gesichert werden.
Unter Mac OS X liegt dieses unter "/Users/YourUserName/Library/Application Support/Firefox". Unter Windows im AppData-Ordner. Durch das Löschen des alten Ordners generiert firefox automatisch einen neuen ordner. Die Videos laufen jetzt wieder.
(english) I have a macbook pro. if I switch to INTEL graphics card instead of NVIDIA it works.
I have finally found a solution: Create new profile-folder!
Please backup your old profile-folder first! In Mac OS X this is under "/ Users / your username / Library / Application Support / Firefox". On Windows, the AppData folder. By deleting the old folder firefox automatically generates a new profile-folder and YouTube will play Videos again. ;-)
Bewurke troch Ollimann op
SOLVED
I went to 3.6.17 and saved my entire profile. That did not fix things. But after I posted here, I got a suggestion from a Mac OSX techie. He suggested something very similar to yours. He said try to use Firefox/Mac OSX as another user. I tried as GUEST. As Guest I was still using the same Firefox install but something was different. Then I deleted the Profile but saved the bookmarks. I then "rebuilt FF" installing the add-ons from before and my saved bookmarks. Curiously, the PLUG-ins from before were not deleted. Everything works OK now.
The key to it all was running FF as GUEST. When that solved things, I knew how to fix it.
The changes made all javascripts work perfectly too. Thanks
Bewurke troch Old MacOSX86 Guy op