Rated 5 out of 5 stars

Message for TB - You HAVE to make the Extensions User interface less confusing and more easily navigable! Because your developers think "well WE know our way around it so we think it's fine" does NOT mean it's fine.
Where do I find the Config page for any particular Add-on (besides trawling the Web)?
As for RDM - It's not finding about 80% of my duplicates. I understand I have to find and tweak the Config page, wherever it is. (I used the previous one fine before having to un/reinstall TB and losing it.)
If/when I get it working properly I'll update here and add a *.
UPDATE - WHY does TB put specific Add-On settings in a completely different menu to the actual Add-On?!? Put this (also) in the Settings option ON THE PAGE FOR THE SPECIFIC ADD-ON! (FYI, they're in the main Menu: Tools: Add-on Options). Now it's done I'm upping to 5*, but I still want to know how to prioritise a Flag ("Replied") as the version(s) to Keep?

This review is for a previous version of the add-on (0.5). 

Rated 5 out of 5 stars

I don't know what I would do without this!
The only improvement that would be really good is the option to "Keep" (prioritise) messages that have been replied to. That way they could remain part of a long discussion thread & not break in the middle if I've chosen the wrong one.
How do I give you money? (No PayPal link on the Add-ons page).

This review is for a previous version of the add-on (0.3.16). 

Rated 5 out of 5 stars

I use this because it helps & the idea is right, but I have a lot of duplicates that it doesn't find.
I cannot find any differences but there must be some, such as a few seconds difference in Received time(?) but there's no way to set any "ignore" criteria like in C-Cleaner's Duplicate (Files) Finder.

Edit: I can't reply to your reply so I will do so here -
Thanks. I was looking for the "Add-on settings" in Tools > "Remove Duplicates..." where all I got was a short list of messages.
There's no "button" in the toolbar from what I can see?
But I've just found "Options" in the Extensions > More link where I can set criteria.

This review is for a previous version of the add-on (0.3.12). 

You can use the add-on settings dialog to choose which criteria to use for the comparison. Also, the toolbar button has an integrated drop-down menu from which you can select the criteria.