Dette websted vil have begrænset funktionalitet, mens vi gennemgår vedligeholdelse for at forbedre din oplevelse. Hvis en artikel ikke løser dit problem, og du vil stille et spørgsmål, har vi vores supportfællesskab, der venter på at hjælpe dig på @FirefoxSupport på Twitter og/r/firefox på Reddit.

Søg i Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Læs mere

how do i roll ff version 4.0 back to 3.6 ?

  • 1 svar
  • 4 har dette problem
  • 7 visninger
  • Seneste svar af TonyE

more options

the new version runs very slow on my old pc

the new version runs very slow on my old pc

Alle svar (1)

more options

To downgrade to Firefox 3.6 first uninstall Firefox 4, but do not select the option to "Remove my Firefox personal data". If you select that option it will delete your bookmarks, passwords and other user data.

You can then install the latest version of Firefox 3.6 available from http://www.mozilla.com/en-US/firefox/all-older.html - it will automatically use your current bookmarks, passwords etc.

To avoid possible problems with downgrading, I recommend going to your profile folder and deleting the following files if they exist - extensions.cache, extensions.rdf, extensions.ini, extensions.sqlite and localstore.rdf. Deleting these files will force Firefox to rebuild the list of installed extensions, checking their compatibility, and reset toolbar customizations.

For details of how to find your profile folder see https://support.mozilla.com/kb/Profiles