grazie win xp ...ma con FF11 non lo faceva ! ecco la lsita :
Applicazione: Firefox 12.0 (20120420145725)
Sistema operativo: WINNT (x86-msvc)
- Adblock Plus 2.0.3
- Adblock Plus Pop-up Addon 0.3
- anonymoX 0.9.9
- avast! WebRep 7.0.1426
- Download Statusbar 0.9.10
- Download YouTube Videos as MP4 and FLV 1.3.8
- DownloadHelper 4.9.9
- DownThemAll! 2.0.13
- Extension List Dumper 1.15.2
- Facebook Toolbar 1.8 (Inattivo)
- Firefox Synchronisation Extension 1.7.110.333 (Inattivo, Incompatibile)
- Forecastfox 2.0.21
- Ghostery 2.7.2 (Inattivo)
- Greasemonkey 0.9.20
- HP Smart Web Printing 4.60 (Inattivo, Incompatibile)
- IE Tab 2 (FF 3.6+) 4.1.3.1
- Java Quick Starter 1.0
- Locationbar² 1.0.6
- Microsoft .NET Framework Assistant 1.3.1
- NetVideoHunter 1.9.1
- NoScript 2.4.3 (Inattivo)
- Show my Password 2.0
- Site Launcher 2.4.0
- SpeedFox 0.9.11
- TimeLineRemove.Com 0.9
- TubeStop 4
- User Agent Switcher 0.7.3
- WOT 20120515
- YouTube to MP3 1.2.3
come mai a volte non vanno i video ???