Extensions
addons.mozilla.org/firefox/extensionsThe Firefox add-ons directory lists extensions for customizing browsing, including categories for bookmarks, downloads, feeds, games, and appearance.
Looking for something like Ecosia? Here are 10 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 3 are open source.
The Ecosia Firefox extension sets Ecosia as the browser’s default search engine; the add-on is free to download.
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Extensions | — | Not stated | — |
| 2 | FireMonkey by erosman | — | Not stated | Android |
| 3 | CRX Installer by FoxRefire | — | Not stated | Browser extension |
| 4 | Print Edit WE by DW-dev | — | Not stated | — |
| 5 | Darkreader | — | Yes | Browser extension |
| 6 | Bookmark Search Plus 2 | — | Not stated | Windows |
| 7 | Sidebery | — | Yes | — |
| 8 | FX Cast | — | Not stated | Browser extension, Linux, macOS |
| 9 | Firefox Scripts | — | Yes | Linux, macOS |
| 10 | Firefox | — | Not stated | Browser extension, Web |
The Firefox add-ons directory lists extensions for customizing browsing, including categories for bookmarks, downloads, feeds, games, and appearance.
FireMonkey combines user-script and user-style management in a Firefox extension, with a compatibility mode for scripts from other managers.
CRX Installer installs Chrome extensions in Zen, Firefox Nightly, and LibreWolf, with additional setup steps noted for some browsers.
Print Edit WE lets users edit webpage content before printing or saving it, with options described in its Firefox extension listing.
Dark Reader is an open-source MIT-licensed browser extension for Chrome and Firefox that analyzes web pages and generates a dark mode to reduce eyestrain.
Bookmark Search Plus 2 filters bookmarks by search text and shows their parent folders in a Firefox extension.
Sidebery manages Firefox tabs and bookmarks in a sidebar through a browser extension.
fx_cast is a Firefox extension that enables Chromecast support for casting web apps and HTML5 media, according to its project page.
Firefox Scripts provides userChromeJS, autoconfig.js, and extension scripts, with installation instructions for Firefox Developer Edition.
The CatalyzeX Firefox extension helps find code implementations for research papers across search and research sites.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative