Rated 3 out of 5 stars
I didn't try out this app but will in the future that's for sure. However after reading this Dave's comment I started to think about that. Definitely I should, before all, try it out to have some lights about the extension to really start thinking about what he wrote.
Sorry for rating 3 (or whatever) but it's obligatory to put stars.
Please see the reply to Dave's comment https://addons.mozilla.org/en-US/firefox/addon/wot-safe-browsing-tool/reviews/386672/
I hope you reconsider and give at least a try for WOT add-on.