Order of evalutation and multiple servers Rated 4 out of 5 stars

Very nice but, as others have mentioned, needs one or two features more.
One feature that could be added presumably without much effort would be to either add an 'order of evaluation' feature within the list of severs (first in the list is evaluated first, and user should of course be able to rearrange their order), or as an alternative (and maybe better and easier yet to implement) to use a specificity evaluation criterium (if two servers only differ because of the associated directory and one is a in a subfolder of the other, it is the more specific one that is offered for the switch).
The other feature has already been mentioned by other reviewers: multiple alternatives are also necessary (test, training, acceptance environments), but of course it would make the interface a bit more complicated, so for the time being, I'll stick to my bookmarklets (and associated keywords): easy to write, flexible and lightweight.

This review is for a previous version of the add-on (0.5).