the best extension of its category Rated 5 out of 5 stars

thank you to the developer for this indispensable extension.
it should be built-in in Firefox.
simple, effective, customizable, interesting options.
it's a no-fault
a score of 10 out of 10 with mention very well :)
works well under Linux.

I expect compatibility with FF 57+

good job, keep going
thank you for your involvement.

Melissa.