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Ask Hackers: Are Firefox extensions secure?
Could Firefox extensions access my passwords stored in Firefox? Are you using extensions working with your passwords ... to check your new mail by example?
- almost 19y agoIt's the same as installing any piece of software. So yes, they could.
- tx 19y agoAFAIK they're not isolated, i.e. running with the same privileges as the rest of XUL code, including Firefox UI itself. In the realm of a browser, I can imagine quite evil XUL extensions. I cannot tell anything about the level of isolation for XUL runtime itself though - i.e. how protected the rest of your computer is from XUL code.
- vincent404 19y agoThis is why I never save passwords : simply for the just in case possibility.