Most of these Wikipedia-useful programs for the Mozilla and SeaMonkey browsers should also work for Mozilla Firefox. See the Firefox page.

• wikEd, a full-featured in-browser text editor that adds enhanced text processing functions to Wikipedia and other MediaWiki edit pages. Features include wikicode syntax highlighting, regular expression search and replace, and MS Word / HTML to wikicode conversion.
• Extension: Wikipedia toolbar
• Search toolbar
• URL shortcut.