Why are my full screen/reduce/exit buttons blacked out (top right of screen) How can I restore?
I am using a laptop........it was there before, have had to remove then add Firefox for other reasons but am unable to use without this being returned to the screen. I would like to keep using Firefox?
Alle Antworten (2)
If you have problems with current Shockwave Flash plugin versions then check this:
- see if there are updates for your graphics drive drivers
https://support.mozilla.org/kb/upgrade-graphics-drivers-use-hardware-acceleration
- disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later)
https://forums.adobe.com/message/4468493#TemporaryWorkaround
- disable hardware acceleration in the Flash plugin
https://forums.adobe.com/thread/891337 See also:
Start Firefox in Safe Mode to check if one of the extensions (Firefox/Tools > Add-ons > Extensions) or if hardware acceleration is causing the problem.
- Switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance
- Do NOT click the Reset button on the Safe Mode start window
- https://support.mozilla.org/kb/Safe+Mode
- https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
If you use a non standard windows theme or made other appearance changes then try to revert those changes and use a (different) standard theme or Windows wallpaper.