Noté 5 sur 5 étoiles

I installed this addon and got a report.
But I don't know what to do with it.
Thank you for the answer. I will try.

The report should tell you which other processes on your machine are competing for resources with Firefox startup. If they're not programs you need, you can uninstall or disable them. If you want, I can take a look at your report -- just e-mail me at vdjeric at mozilla.com