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how do I fix the uninstal set error message that continues to pop up

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  • 7 have this problem
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  • Last reply by cor-el

hlpalmer
hlpalmer
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when FF is open and I click on any item a message appears as follows: [JavaScript Application] ! uninstal set. This message appears each time I press the left mouse button and will not dissappear until i click on OK. How do I fix this

when FF is open and I click on any item a message appears as follows: [JavaScript Application] ! uninstal set. This message appears each time I press the left mouse button and will not dissappear until i click on OK. How do I fix this

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cor-el
cor-el
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  • Top 10 Contributor
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This issue can be caused by an extension that isn't working properly.

Start Firefox in Diagnose Firefox issues using Troubleshoot Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).

If it does work in Safe-mode then disable all extensions and then try to find which is causing it by enabling one at a time until the problem reappears.

  • Use "Disable all add-ons" on the Safe mode start window to disable all extensions.
  • Close and restart Firefox after each change via "File > Exit" (Mac: "Firefox > Quit"; Linux: "File > Quit")

In Firefox 4 you can use one of these to start in Safe mode:

  • Help > Restart with Add-ons Disabled
  • Hold down the Shift key while double clicking the Firefox desktop shortcut (Windows)