I think you should stop updating this extension to only support the newest Firefox version at all times. Its just a redirector, there is no reason it needs to only support the newest version of firefox at all times while dropping support for older ones.

reddit.com (edgebucket, loid, csv, pc, csrf_token, token_v2, session_tracker): Clean because reddit.com is not in the White or Grey lists

Getting that every minute with Cookie AutoDelete...
As another reviewer said it's just a glorified redirect. Didn't know it came packed with Reddit session tracker cookies too.

Some Reddit pages don't work with the redirect https://www.reddit.com/prefs/feeds/, and the addon doesn't allow exceptions. I'm using UI changer for Reddit since it works: https://addons.mozilla.org/en-US/firefox/addon/ui-changer-for-reddit/.