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Browser won't work

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I have used Firefox for years, but the latest update won't work, and now I'm having to do this through Safari. After an hour of doing all of the usual things, I'm at a loss...

I have used Firefox for years, but the latest update won't work, and now I'm having to do this through Safari. After an hour of doing all of the usual things, I'm at a loss...

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Did you try to reboot ?

Try to start Firefox in Troubleshoot Mode to see if that works.

  • Mac: hold down the Options key while starting Firefox
  • Windows: hold down the Shift key while starting Firefox