The remove-anything addon

[rstillwell]

I love this addon and use it constantly, But what I would really like is an option "Expose this object" that would remove all the garbage obscuring the Item I want to read.

[endolith]

You can do this with uBlock and other addons like that

[igorlogius]

If i remember correctly this addon 

https://addons.mozilla.org/en-US/firefox/addon/print-edit-we/

has an option to "hide other elements"