Not working! (v6.1.2) Rated 1 out of 5 stars

The new version doesn't work! (v6.1.2). There's no statusbar icon, no context-menu, nothing.
Luckily I have backup the old extension monthly. I have to revert back to version 5.7.7.
arai_a, please fix this because your UnMHT add-on is really great!

This review is for a previous version of the add-on (6.1.2).