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Rated 4 out of 5 stars
I have install Web Developer. I thought it can be useful to follow my site mistakes... It runs, here is option HTML linked to http://validator.w3.org.After I try to put in for my site improved code. It just changes my page in such appearance I never want. May be it need to remove it useless link. It seems still not working properly.This review is for a previous version of the add-on (18.104.22.168-signed).