Copy Plain Text for Firefox 4.0 Rated 5 out of 5 stars

Found a work around - Extended Copy Menu with fix version for Firefox 4.0
https://addons.mozilla.org/ru/firefox/addon/extended-copy-menu-fix-vers/

Rated 5 out of 5 stars

Agh! Not compatible with 4.0, yet. When? This is a must-have for me. I have to revert to 3.x till this is compatible. I wish FF was plain text as default.

This is a 5* app, when its compatible.