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will not display when opened

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  • Last reply by FredMcD

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I use windows 10 and have used Firefox for several years. About 1 week ago it stopped displaying. When I run CC cleaner it shows it as open. I us McAfee protection. Any suggestions?


ciacven

I use windows 10 and have used Firefox for several years. About 1 week ago it stopped displaying. When I run CC cleaner it shows it as open. I us McAfee protection. Any suggestions? ciacven

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What's your computer system and Firefox version?

https://support.mozilla.org/en-US/kb/changes-toolbars-and-window-sizes-are-not-saved You may have corrupt xulstore.json or Localstore.rdf files.

Close Firefox. Open your file browser to this hidden location:

  • Mac: *~/Library/Application Support/Firefox/Profiles
  • Linux: *~/.mozilla/firefox/Profiles
  • Windows: %AppData%\Mozilla\Firefox\Profiles
  • *C:\Users\<user>\AppData\Roaming\Mozilla\Firefox\Profiles
  • Windows XP: C:\Documents and Settings\<user>\Application Data
    \Mozilla\Firefox\Profiles\

Search for the above files. Then rename or delete them. Restart Firefox.