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how to fix this....classes['@browserhighlighter.com/Shim;1'

  • 2 replies
  • 5 have this problem
  • 83 views
  • Last reply by cor-el

wishgail
wishgail
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every time I log onto firefox I get this message .classes['@browserhighlighter.com/Shim;1' that I have to delete before I can get on line. Why does this happen and how do I fix it please?

every time I log onto firefox I get this message .classes['@browserhighlighter.com/Shim;1' that I have to delete before I can get on line. Why does this happen and how do I fix it please?

All Replies (2)

user633449
user633449
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I would try to Reset Firefox, as this is most likely caused by an extension. Note: This will cause you to lose any Extensions, Open websites, and some Preferences.

To Reset Firefox do the following:

  1. Go to Firefox > Help > Troubleshooting Information.
  2. Click the "Reset Firefox" button.
  3. Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.
  4. Firefox will open with all factory defaults applied.


Further information can be found in the Refresh Firefox - reset add-ons and settings article.

Did this fix your problems? Please report back to us!

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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It is best to first try some basic steps instead of creating a new profile via a reset.

Start Firefox in Safe Mode to check if one of the extensions or if hardware acceleration is causing the problem (switch to the DEFAULT theme: Firefox/Tools > Add-ons > Appearance/Themes).