firefox-user.js-tool: An HTML repository from icpantsparti

userjs-tool.html

Interactive view, compare, and more for Firefox user.js (eg arkenfox/user.js) + about:config functions

Open userjs-tool.html on-line (github.io)

View the current arkenfox user.js* in a table (github.io)

Functions to get more out of about:config (eg: find, filter, list, save to file, etc)

*Note: the excellent arkenfox user.js is by other developers at:
arkenfox user.js home / arkenfox user.js issues / arkenfox user.js wiki

Introduction

Display a Mozilla Firefox user.js settings file contents in your Firefox browser, with:

highlighting, links, themes*, re-size, wrap, about:config links/regex/groups
expanding sections, and index to go to sections (with compatible user.js projects)
compare preferences in two user.js, in a table format with order/layout options and bold cell border around differences
actions including: user-overrides.js* append* (with comment-out*), point and click overrides collector, skeleton, prefs.js cleaner*, group by values
load/save, drag/drop, or copy/paste user.js files (can load from some on-line URLs too)
functions for find (filter/list)/reset/set on about:config Web Console (Firefox/forks/Thunderbird/SeaMonkey)
single .html file (HTML/CSS/JavaScript) with no external dependency
open userjs-tool.html on-line or save for off-line use

(*arkenfox/user.js inspired. Please visit arkenfox/user.js and read their info on arkenfox/user.js/wiki. They also have nice scripts for append/clean/troubleshoot.)

This started as an over the top experiment for learning some HTML/CSS/JavaScript (first released 2019.01.02, compare added 2020.02.22). This is a viewer/tool, and not an editor/installer.

Disclaimer: Use with care at your own risk, and verify any results

(Optional) How to save and open userjs-tool.html off-line

Open the raw text/html file in a browser tab
Right click within that page and "Save Page As..."
Open the saved userjs-tool.html file with your Firefox browser
(you can drag and drop it from your Downloads folder into a new tab)
Bookmark it for easy access
Remember to check here for updates

Other Info

(Optional) The userjs-tool-themes.css file can be used with userjs-tool.html to add custom themes/colors (or override the default)
The userjs-tool-aboutconfig-functions.js file is also embeded in userjs-tool.html (view with the [a:c Functions] button).
You can do these (and more) from the interface, or by using URL parameters:

Preview

icpantsparti/firefox-user.js-tool

userjs-tool.html