Rated 3 out of 5 stars

Breaks my banking application in a conversation for sending payments!!

Furthermore it works great.

This review is for a previous version of the add-on (2.5.1-signed). 

If you tell me the web address of your banking application I can disable it there to avoid the problem. I only need the part before the //slashes. You can email to firefox.add.on@davidadler.name .

You could also temporarily disable it by clicking the Thumbnail Zoom Plus toolbar button (View > Toolbars > Add-on Bar and/or View > Toolbars > Customize if you don't see the button).