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Cuireadh an snáithe seo sa chartlann. Cuir ceist nua má tá cabhair uait.

A couple days ago Firefox crash and now when I go to it a Message box comes up stating Message - Unistal set.

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A Message box comes up (Message - Uninstal Set with the word OK) comes up when every I use Firefox. This Started a couple of days ago after Firefox crash.

A Message box comes up (Message - Uninstal Set with the word OK) comes up when every I use Firefox. This Started a couple of days ago after Firefox crash.

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Other users have reported that this is caused by one of their add-ons. I suggest going to the Add-ons page and disabling everything that is not essential, and then restarting Firefox. Hopefully it's not caused by something you really rely on.

orange Firefox button > Add-ons > Extensions

or

Tools menu > Add-ons > Extensions

Any luck?