Header Columns

This addon allows customized columns to be added to the message list. These columns show information based on header content, through a user-specified set of modifications such as search/replace and concatenation.

Installation

Install from the Mozilla add-ons page (TODO), or use build.sh to produce an unsigned XPI file to install manually.

Usage

TODO, take from API readme

Cloning

Note that this repo uses git submodules, so it needs to be cloned using the --recurse-submodules option. If this is skipped, then git submodule update --init can be used after the fact.

Credits

This addon uses the HeaderColumns experiment API.