Quick and easy Rated 5 out of 5 stars

Works as intended when copying an entire table and select cells if you're using keyboard shortcuts. Deleting unnecessary columns from an entire table is much faster than: 1.) manually entering information 2.) writing an Excel macro after exporting table data with Outwit. One downside is that TableTools2 doesn't always recognize tables in the sense that right-clicking doesn't show a menu, shortcuts still seem to work (http://www.optiforms.com/elliptical.htm for example). This is a great addon for quick data entry when using the text import wizard to paste HTML data does not produce a table. You can fully customize keyboard shortcuts. In my opinion the default Ctrl+Q and then holding left mouse button while dragging over cells of interest is most useful - although quirky at times, without changing selection method...

This review is for a previous version of the add-on (1.16.1-signed.1-signed). 

Thanks for your review. The elliptical page you pointed out disabled Firefox context menu altogether, so naturally TT2 did not show up on context menu, as the menu itself didn't show. While technically I should be able to bring back your context menu despite that a website is preventing it using their javascript, this is beyond the scope of TT2 and there are already other addons doing this, like Right to Click. So I suggest either using shortcut like you did or using other addons that bring back context menu.