5 ਤਾਰਿਆਂ ਵਿੱਚ 5 ਮਿਲੇ

ਵੱਲੋਂ Max ਫਰ 15, 2013 ਤੇ · ਪਰਮਾਲਿੰਕ

Works very well, dev.builds are always available, has a truck load of options, easy to follow documentation with illustrations, change logs, well supported by a very responsive developer (just read the ongoing thread on Mozillazine forum).
Everything one would wish for in an extension.