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.
由 Old MacOSX86 Guy 於 修改
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(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. ;-)
由 Ollimann 於 修改
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
由 Old MacOSX86 Guy 於 修改