The 2.0.0.8 release fixed some 200 issues, but accidentally regressed a few things. Most users won’t see any difference or experience any problems, and those 200 fixes make the 2.0.0.8 update very valuable, but you should never have to choose functionality over security. The specific problems are:
* Bug 400406 – Firefox will ignore the “clear” CSS property when used beneath a box that is using the “float” property. There is a temporary workaround JS/CSS code available for web developers with affected layouts.
* Bug 396695 – Add-ons are disabled after updating. Users can fix this problem by opening their profile folder and removing three files (extensions.rdf, extensions.ini and extensions.cache)
* Bug 400421 – Removing a single area element from an image map will cause the entire map to disappear. There is no workaround available at this time.