PUBLIC MARKS from decembre with tags css & alternative

The Developer Edition is the replacement for Firebug https://www.mozilla.org/en-US/firefox/developer/Yes, I know you can right click and copy the css or xpath, but thats not what I am asking. I am asking about the functionality that was provided by firefinder add on. Does FF offer that somewhere now that firebug was removed and added to the developer version.

An alternative or Update ? Rated 5 out of 5 stars by decembre on Feb. 21, 2018 · permalink When i write an Userstyle it is (was) the primary tool i use with Firebug. Now i search an alternative for this great tool: The devtool don't give us the possibility to search or test a specific CSS selector like Firepath do. And in an other hand the DevTool is less useful than Firebug (it don't give an easy way to identify in which userstyle a CSS rule is - with an human reading way)

FreeStyler

This "base styles sheet". It sets default styling for many elements, follows a couple of recommendations regarding usability/accessibility, and addresses a few "common issues" as well. What does it do that a reset doesn't? It fixes a few things: 1- It forces a gutter for a vertical scrollbar (when content is too short to require a scrollbar) 2- It includes an IE button width fix 3 -It removes "sticky" outline (not in Internet Explorer though) 4- It prevents "mysterious gaps below images" It prevents descenders letters in legend from being cut-off in Internet Explorer 5- It vertically aligns checkboxes and radio buttons with their label 6- It sets a default color background for the document with no shrink wrap effect on body1 7- It styles lists by default