2021-05-06 This extension works fine in Waterfox Classic, and that's what I've been using for my wiki, which uses tags extensively. I use other browsers for other things.

2018-08-17 Currently making a big push to port this thing to webextensions. Need to reverse engineer it.

This is my archive of tagsifter and tagsieve with my fixes and workarounds. I've started development of a completely new version of the firefox extension.