Tocano
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
you are taking this to the extreme without considering what you are saying. it is true that authors should be rewarded for their efforts to produce a piece of writting or art. however, sometimes some authors and publishers choose to hide this content, which may be useful when accessible by the larger community. imagine if certain inventions were not made public by their inventors. the entire race would still be living in the stone age.
what a surprise, nature reduces overheating from the crazy unnatural buildings and moving heat machines
DRM cheese