Review for MuteThread by Seamuscamp
Rated 1 out of 5 stars
No doubt this is a useful utility for some. For example someone tried a fraud on my Amazon account. Bought a gift card. Used this facility to cloak warning messages from Amazon. Luckily I use two devices to access my emails. Only one was compromised - the Thunderbird one. I've blocked my credit card in time to limit the damage.
To create your own collections, you must have a Mozilla Add-ons account.