Comment by _yfoe

I've cut down on the extensions I use over the years. Here's my entire list:

* HTTP Switchboard - useful for debugging/blocking annoyances, also doubles as an adblocker

* LastPass - honestly, I'd probably be using 1Password if they had a linux client

* PDF Viewer - Mozilla endorsed drop-in pdf.js plugin

* Smile Always - converts amazon.com uris to smile.amazon.com, which donates a portion of your purchases to charity