Resizing oversize window
From MozillaZine Knowledge Base
If you're having trouble resizing an oversized window:
- Enable JavaScript. (Firefox: Tools -> Options -> Content -> Enable JavaScript; Mozilla Suite: Edit -> Preferences -> Advanced -> Scripts & Plug-ins -> Enable JavaScript for -> Navigator)
- Make sure scripts can resize windows. (Firefox: Tools -> Options -> Content -> Advanced JavaScript settings. Mozilla Suite: Edit -> Preferences -> Advanced -> Scripts & Plug-ins).
- Type: javascript:top.resizeTo(screen.width*0.8,screen.height*0.8) into the Location Bar and press Enter.
If after following these steps, new windows still start up too big, you may have a corrupt localstore.rdf.