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my firefox has changed- I have lost my tool bar and now asking me to sign in.Have I been hacked

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  • Last reply by Shadow110

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my firefox home screen has changed on my firefox homepage. I clicked on a security add on and now I no longer have my same home page. I tried to get a Mozilla home page and my computer typed unknown characters- like for another language. I have a MAC using 10.13.6.

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Hi, it is possible or there is corruption in a file. How about 1st run a scan : https://www.malwarebytes.com/mac/

After if still issues : SAFE MODE

In Firefox Safe mode these changes are effective:

  • all extensions are disabled (about:addons)
  • default theme is used (no persona)
  • userChrome.css and userContent.css are ignored (chrome folder)
  • default toolbar layout is used (file: localstore-safe.rdf)
  • Javascript JIT compilers are disabled (prefs: javascript.options.*jit)
  • hardware acceleration is disabled (Options > Advanced > General)
  • plugins are not affected
  • preferences are not affected

TEST''''is issue still there ?

If still issues : REFRESH INSTRUCTIONS please try a Refresh but Note that this does more than uninstalling and re-installing does. Normal uninstalling does not remove some preferences which may have become corrupt. Please Refresh but do this 1st: Delete your Cookies and Cache and TEST.

then

TEST....... If no issues then Extensions which need to be added back in 1 at a time and tested ..... Or it is your Profile : Make a new one and test ...:

If is your Profile :

Note: Any customization will revert back to default, you will also need to reinstall Extensions.