The increasing prevalence of cookie permission banners is making browsing near intolerable. There is no fool-proof method to avoid seeing them, but here's the methods I've learnt about and my own recommendation.

• "Is there any way to block the cookie agreement popup using Firefox?", Quora question with a few informative answers.
• "Extension that blocks all those 'accept cookie' popups?", Reddit question with good answers.
• "How to stop irritating cookie popups", blog post by Gtarafdar showing how to do it using CSS (I'd consider this the hardcode, manual way).

I use the Firefox extension "I don't care about cookies" (IDCAC), developed by Daniel Kladnik. The developer accepts donations.

• IDCAC is published under a libre license, but does not have any public repo
• https://www.producthunt.com/posts/i-don-t-care-about-cookies-2

Other browser extensions with similar functionality:

• https://github.com/CodyMcCodington/AutoCookieOptout, Firefox add-on
• https://ninja-cookie.com/, Firefox add-on (appears outdated)