tocano

Do you also buy your milk in bags?

I suggest going for addons recommended by Firefox.

For blocking ads and other annoying content, I suggest uBlock Origin. It allows you to customize your experience, and can have the same or better effect than some other extensions. It is also not recommended to use multiple ad blockers, as they may conflict with each other.

For deleting cookies, I recommend not using an addon, but the settings of Firefox. Under "Cookies and Site Data" you can choose to delete cookies on close and manage exceptions for the cookies you want to keep.

For translation, Firefox Translations is fine.

Search by Image, I never used but it is recommended.

I usually avoid "redirect skippers". As they can be as problematic as the initial problem itself. I cannot find FastForward in firefox and Skip Redirect is not recommended by firefox.

edit: spelling

Now that it has threads and features for communities I think it's pretty decent.

The internet is absolute garbage now

Well, it always was. The internet was always filled with low effort webpages with ads from top to bottom. The only change is that as people got better at avoiding the old scams, new ones appeared with better CSS and more psychological manipulation.

ad-delivery platform

It is basically this. Most websites just try and dig into your profile, masking it as "personalized customer service", but the real intention is to know what you do, who you talk to, and try to sell you goods & services.