Rated 5 out of 5 stars

Error message i get :
Firefox could not install the file at

https://addons.mozilla.org/en-US/firefox/downloads/file/45246/-20090119.xml

because: Not a valid install package
-207

Hi there,

I cannot replicate the error, so I'm inclined to think that it was a momentary mozilla.org server glitch.

Can you install other plugins? What firefox version are you using and in what operating system?

Thanks!