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Site Blocker blocked every site on the internet

TheSurveyor
TheSurveyor
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Literally. I downloaded an add-on to Firefox called SiteBlocker and when I went to block a site it blocked every single accessible site on the internet (including the homepage and all the search engines). So when I open it up, it just gives me a blank page and tells me the site was blocked. I tried uninstalling and reinstalling the browser but that did nothing. I had to use Microsoft Edge to post this. I also don't know how to delete the add-on because I can't even get to it.

Literally. I downloaded an add-on to Firefox called SiteBlocker and when I went to block a site it blocked every single accessible site on the internet (including the homepage and all the search engines). So when I open it up, it just gives me a blank page and tells me the site was blocked. I tried uninstalling and reinstalling the browser but that did nothing. I had to use Microsoft Edge to post this. I also don't know how to delete the add-on because I can't even get to it.

Chosen solution

You can start Firefox in its Safe Mode, where all extensions are deactivated, and remove it there. At least, I hope you can remove it there; if it installed externally, you might need to use the Windows Control Panel.

If Firefox is not running: Hold down the Shift key when starting Firefox.

If Firefox is running: You can restart Firefox in Safe Mode using either:

  • "3-bar" menu button > "?" button > Restart with Add-ons Disabled
  • Help menu > Restart with Add-ons Disabled

and OK the restart.

Both scenarios: A small dialog should appear. Click "Start in Safe Mode" (not Refresh).

Then you should be able to get to the Add-ons page and remove this thing.

To return to normal, exit out of Firefox and start it without holding down the Shift key.

Success?

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All Replies (2)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
more options

Chosen Solution

You can start Firefox in its Safe Mode, where all extensions are deactivated, and remove it there. At least, I hope you can remove it there; if it installed externally, you might need to use the Windows Control Panel.

If Firefox is not running: Hold down the Shift key when starting Firefox.

If Firefox is running: You can restart Firefox in Safe Mode using either:

  • "3-bar" menu button > "?" button > Restart with Add-ons Disabled
  • Help menu > Restart with Add-ons Disabled

and OK the restart.

Both scenarios: A small dialog should appear. Click "Start in Safe Mode" (not Refresh).

Then you should be able to get to the Add-ons page and remove this thing.

To return to normal, exit out of Firefox and start it without holding down the Shift key.

Success?

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
more options

Also, can you ID this thing specifically? While in Safe Mode, before removing it, you can copy/paste its name and ID from the Extensions table on the support information page (use any of these to access it):

  • "3-bar" menu button > "?" button > Troubleshooting Information
  • (menu bar) Help > Troubleshooting Information
  • type or paste about:support in the address bar and press Enter