Avast has plugin for internet explorer called script blocker and ms outlook plugin fr Ms outlook but it doen’t have any plugin for Firefox and Thunderbird 
Would you create any plugins for firefox and Thunderbird in the next version or is it unnecessary 
well, i don’t think that it’s necessary…
scriptblocker doesn’t work in vista (when UAC is enabled) and i never really needed it in older OS… :-\
the ms-outlook/exchange provider is a nice thing, which adds some interesting features
firefox is (like IE) protected by the webshield and thunderbird is (like windows mail) protected by the internet-mail-provider and so i don’t think any more plugins are necessary - but would be a nice extra… 
just my thought 8)
yours
onlysomeone