Why does about:performance page not work?
When I try to go to about:performance, I get message saying "Firefox can't find the file at about:performance." I don't have any problems going to any of the other about: pages.
Soluzione scelta
The about:performance page only works for me with the current Nightly build (43.0a1), so you can't use it is older versions.
- Bug 1136927 - [meta] Let slow add-on notification ride the trains
Please do not comment in bug reports
https://bugzilla.mozilla.org/page.cgi?id=etiquette.html
Tutte le risposte (3)
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
Do a clean reinstall and delete the Firefox program folder before (re)installing a fresh copy of the current Firefox release.
- Download the Firefox installer and save the file to the desktop
https://www.mozilla.org/en-US/firefox/all/
If possible uninstall your current Firefox version to cleanup the Windows registry and settings in security software.
- Do NOT remove "personal data" when you uninstall your current Firefox version, because this will remove all profile folders and you lose personal data like bookmarks and passwords including data in profiles created by other Firefox versions.
Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.
- (32 bit Windows) "C:\Program Files\Mozilla Firefox\"
- (64 bit Windows) "C:\Program Files (x86)\Mozilla Firefox\"
- It is important to delete the Firefox program folder to remove all the files and make sure that there are no problems with files that were leftover after uninstalling.
- http://kb.mozillazine.org/Uninstalling_Firefox
Your bookmarks and other personal data are stored in the Firefox profile folder and won't be affected by an uninstall and (re)install, but make sure NOT to remove personal data when you uninstall Firefox as that will remove all Firefox profile folders and you lose your personal data.
It's hard to tell exactly what's happening with that page, but I think it might only work in pre-release versions of Firefox because it isn't fully tuned yet.
Soluzione scelta
The about:performance page only works for me with the current Nightly build (43.0a1), so you can't use it is older versions.
- Bug 1136927 - [meta] Let slow add-on notification ride the trains
Please do not comment in bug reports
https://bugzilla.mozilla.org/page.cgi?id=etiquette.html