Good Rated 5 out of 5 stars

This is a very useful addon for extracting screen space. I use it without any major hitches on Windows. But I face a problem while using it on Linux machines. On Linux machines, the Fx/Nightly button shifts to the right of the combined url bar. Is there a way to fix/get around this?

This review is for a previous version of the add-on (2.1-signed.1-signed).