For about five years i hit this bookmarklet when visiting almost any site. in most cases it gets rid of the cookie banners, bulky headers, and sidebars so this is the true fix for me. If the page doesn't work under all the fixed position junk, then i bounce.

That bookmarklet was a brilliant idea.

I've made a slightly more invasive variation targeting more (potential) annoyances, and I cannot imagine not having it in the bookmarks toolbar now.

http://myfonj.github.io/utils/bookmarklets/sweep-stickies.ht...

There's a Firefox addon: https://addons.mozilla.org/en-US/firefox/addon/kill-sticky I use it often. It also worked great on the presented site.

Thanks for this. Although I have the most issues with sticky headers on mobile. Currently I mostly bail out of those websites.

Looks like something you could do with just a uBO rule now.