Really good tips here, including a couple I'd not heard about and promptly followed:
This is the bare minimum necessary to configure Firefox so that it behaves in a reasonable manner.
This document was last updated on 27 January 2025 and was tested with a clean install of Firefox 134.
Verify these steps each time Firefox is updated.
- Go to uBlock Origin and click Add to Firefox
This will filter out most of the advertisements on websites, saving you a shitload of network traffic (and if your computer is slow, not having to show all that crap is a big speedup). Once you get it set up you can just ignore it, but if you care it will tell you how much stuff it's blocked on your behalf.- Go to LocalCDN and click Add to Firefox
Most websites load the same files over and over from the same places -- primarily Google servers. This thing puts all that right in your browser, making for less network traffic and denies Google the privilege of inspecting your usage patterns. Once it's installed you can ignore it.[…]