This simple addon redirects your web browser from reddit.com and old.reddit.com to teddit.net.
https://addons.mozilla.org/en-US/firefox/addon/reddit-to-teddit-redirect/
Teddit is a free and open source alternative Reddit front-end focused on privacy. Teddit doesn't require you to have JavaScript enabled in your browser. The source is available on Codeberg at https://codeberg.org/teddit/teddit.