Not working on firefox 21 EU Rated 1 out of 5 stars

I am using firefox 21 and based in London UK. I have loaded this extension but it does not work. I right click on my page and not see anything mentioned in the menu. I have also tried shortcuts etc but nothing. I have tried on different types of webpages. I have also uninstalled and reinstalled but no joy. I have no other extensions loaded.

This review is for a previous version of the add-on (0.4.10). 

Thanks for your review/feedback and I apologize for your frustration. I'm working on a new version of MeasureIt to automatically show a button to use it. In the meantime, you can add the MeasureIt button to any toolbar in Firefox by right-clicking a toolbar and choose "Customize". In that popup look for our ruler icon and drag it from that window into the toolbar you choose.

Thanks again and for using MeasureIt.

~ Kevin