Does anyone know how to re-enable it?

Unlike some here, I actually find the extension valuable and wish to have it active. I am quite annoyed that Firefox decided to block it without giving me any choice in the matter.

BTW I understand that my own frustration at having this blocked without consent is similar to the frustration of those who wish not to have the extension but had it given to them without consent. That does not excuse either party. As a user I am now bearing the brunt of this petty squabble between MS and FF.

I tried out VS2010 and found it to have some nice improvements; though nothing earth-shattering for me personally, it has some little things that are nice-to-have, and I can see how those things would improve productivity. But I had such severe performance problems I had to give up using it.

In a solution with 12 C# projects and 3 C++ projects, compiling takes around 5 minutes (took under a minute with VS2008) and hangs the UI completely for nearly the entire time. It also seems to not honor dependencies quite right, because compiling a second time with changes in only one project without downstream dependencies still takes nearly as long.

I sincerely hope Microsoft invests some more effort in the performance side of things prior to RTM, if they do, I'll be happy to upgrade.