My screen is bouncing with Firefox

[michaels]

It just started, any ideas? IE doesn't do this.

 

[HN]

could either be a theme not compatible with version of ff or you are using some kind of windows customization (windowblinds?) and the ff theme is not compatible with it.

update your theme or set it back to the default to rule out those possibilities.

 

[Lockout]

If your bookmark toolbar is empty, hide it. That fixed the problem for me.

 

[Mrfrog840]

restart?