I've been using Firefox since 2004, Here's what I have right now.
Privacy/Security
Name | User | Browser | License | Synopsis |
Chrome extension source viewer | Power | Chrome, Edge, Firefox, Opera | MPL v2.0 | View the source code of any extension in the Web store without installing it. |
Canvas Blocker | Power | Chrome, Firefox | MPL v.20 | Alters some JS APIs to prevent fingerprinting. |
Cookie Auto Delete | Power | Chrome, Edge, Firefox | MIT | Control your cookies! Automatically delete unwanted cookies from your closed tabs while keeping the ones you want. |
Cookie Quick Manager | Power | Firefox | GPL v3.0 | A complete manager for cookies accumulated during browsing. |
Decentral Eyes | Anyone | Chrome, Edge, Firefox, Palemoon, Opera | MPL v2.0 | Protects you against tracking through "free", centralized, content delivery. |
KeePassHttp-Connector | Anyone | Chrome, Firefox | GPL v3.0 | KeePassHttp-Connector is a WebExtension for browsers to send and receive credentials from KeePass(XC). |
Request Control | Power | Firefox | MPL v2.0 | An extension to control requests. Provides front-end for Firefox webRequest.onBeforeRequest API for request management. |
Smart Referrer | Power | Firefox | WTFPL | Intelligent referrer handling for increased browsing privacy |
Switch Container Plus | Power | Firefox | GPL v3.0 | Switch the current tab to a different container in multiple ways |
Temporary Containers | Power | Firefox | MIT | Open tabs, websites, and links in automatically managed disposable containers which isolate the data websites store (cookies, storage, and more) from each other, enhancing your privacy and security while you browse. |
uBlock Origin | Anyone | Chrome, Edge, Firefox, Opera | GPL v3.0 | An efficient blocker add-on for various browsers. Fast, potent, and lean. |
uMatrix | Power | Chrome, Firefox, Opera | GPL v3.0 | Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc. |
Utilities
Name | User | Browser | License | Synopsis |
Behind | Anyone | Chrome, Firefox | MPL v2.0 | When "view background image" is greyed out, this add-on is there to help you. |
Context Search | Anyone | Chrome, Firefox | MPL v.20 | Add search engines easily and search from the context menu and convenient popup |
Dark Reader | Anyone | Chrome, Firefox, Edge, Safari | MIT | Dark mode for every website. Take care of your eyes, use dark theme for night and daily browsing. |
Down Them All | Anyone | Chrome, Firefox, Edge | MIT / GPL v2.0 | The Mass Downloader for your browser |
Firefox Multi-Account Containers | Anyone | Firefox | MPL v2.0 | The Firefox Multi-Account Containers extension lets you carve out a separate box for each of your online lives – no more opening a different browser just to check your work email! |
Flagfox | Anyone | Firefox | Custom | Displays a country flag depicting the location of the current website's server and provides a multitude of tools such as site safety checks, whois, translation, similar sites, validation, URL shortening, and more |
FoxyTab | Anyone | Firefox | MPL v2.0 | Collection of Tab Related Actions e.g. Duplicate, Close Duplicates, Close to the Left, Copy Title, Merge Windows, Save as PDF, Copy Urls Tab/All/Left/Right, Host keep/close/close other, Sort by URL/Title, Asce/Desc, Move, Reload, Reload Timer |
Image Search Options | Anyone | Firefox | MPL v1.1 | A customizable reverse image search tool that conveniently presents a variety of top image search engines. |
Offline QR Code | Anyone | Firefox | Custom | This is a (Firefox) add-on (WebExtension) allowing you to generate a QR code from any website and any text. |
Session Sync | Anyone | Firefox | MPL v2.0 | Firefox Add-on for storing browser sessions into bookmarks and sync them across multiple devices |
Stylus | Power | Chrome, Firefox, Opera | GPL v3.0 | "Stylus" is a fork of the popular Stylish extension which can be used to restyle the web |
Undo Close Tab | Anyone | Firefox | GPL v3.0 | Allows you to restore the tab you just closed with a single click—plus it can offer a list of recently closed tabs within a convenient context menu. |
Unload Tabs | Power | Firefox | MPL v2.0 | Unload your tabs to free resources and prevents them from loading unintentionally |
Violent Monkey | Power | Chrome, Firefox, Edge, Opera | MIT | Violentmonkey provides userscripts support for browsers. |