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unable to connect to firefox

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  • 3 有這個問題
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  • 最近回覆由 cor-el

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I click on Firefox icon & get an error of "This application has failed to start because plc4.dll was not found". I don't want to really re-install as I want to keep my bookmarks. Is there anyway around this?

I click on Firefox icon & get an error of "This application has failed to start because plc4.dll was not found". I don't want to really re-install as I want to keep my bookmarks. Is there anyway around this?

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Do a clean (re)install and delete the Firefox program folder (C:\Program Files\Mozilla Firefox\).

Download a fresh Firefox copy and save the file to the desktop.

Uninstall your current Firefox version, if possible.

  • Do NOT remove personal data when you uninstall your current Firefox version, because all profile folders will be removed and you will also lose your personal data like bookmarks and passwords from profiles of other Firefox versions.

Remove the Firefox program folder before installing that newly downloaded copy of the Firefox installer.

Your bookmarks and other profile data are stored elsewhere in the Firefox Profile Folder and won't be affected by a reinstall, but make sure that you do not select to remove personal data if you uninstall Firefox.