the addons i have in my firefox are-------tabmix plus,foxmarks,roboform,no script,ad block plus,flash blocker,filterset g,cooliris,wot, mcafee site advisor, IE pluggin,febe,tab preview and some more, the problem is that i dnt want No script addon to be enabled 24/7 while surfing regular sites like yahoo,msn, also, because sometimes too many add ons make firefox slower. Therefore i have to disable it temporarily, but then when i want to activate/enable it later it doesnt work and asks me for reinstallation.So, i figured out that no script is not a permanent solution to this issue. This happens everytime. But then i tried superad blocker but it didnt work/help either, Hence, i was looking for a solid pop up blocker which can help, suggest some other alternatives if u can,thanks