Addons I use
Code Injector (to remove sticky elements from all web pages)
Dark Reader
Disable Javascript (to disable javascript with one click and continue reading articles without annoyance of any popups)
FB Purity (to remove ads and sponsored or recommended content from facebook feed)
Firefox multiaccount container (to live multiple lives simultaneously using general, personal, professional, banking and shopping containers)
Privacy Badger (fan of EFF)
Thumbnail Ratings Bar for Youtube (to help skip crappy videos)
uBlock origin (definitely required)
vimium (vim like keyboard shortcuts to navigate webpages)
jshelter (to limit access to advanced JS features, like canvas, to websites to keep CPU cool and provide enhanced protection against miners)
Can you imagine my life without Firefox?