button dissapears - can't test Rated 1 out of 5 stars

button dissapears - can't test - incompatible with some other plugins

ed.: button dissapears every time some addon is installed/remove - that's unaceptable - had to remove

This review is for a previous version of the add-on (5.4). 

Please let me know your Firefox version and add-on list by e-mail (pjs.nl@live.com), so I may debug this problem and may provide a patch.

UPDATE: I have seen this behaviour being caused by certain SDK-based addons, such as an old version of MediaPlus. Updating Firefox to the latest version might solve this issue.