Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
    • Other Browser Sites
    • Add-ons for Android
Log in
Preview of WikiLens

WikiLens by buak

Select text on any page to instantly preview the matching Wikipedia article with an image and snippet.

0 (0 reviews)0 (0 reviews)
Download Firefox and get the extension
Download file

Extension Metadata

Screenshots
About this extension
WikiLens turns every page into an encyclopedia. Select any text, and if it is the exact title of a Wikipedia article, an elegant popup appears right where you are: the article's images shown whole (flip through them with an arrow), the full first paragraph with Wikipedia's own formatting, and a link to read the rest on Wikipedia.

EXACT BY DEFAULT Previews appear only when your selection is precisely an article title, so the popup never gets in your way. Ambiguous titles show a tidy "may refer to:" list, and clicking a meaning previews it in place. Prefer looser matching? One switch also resolves redirects like "USA" to "United States".

QUICK FACTS The Large popup adds up to five facts from the article's infobox (born, died, occupation, founded, population, website), and every linkable value is a clickable link of its own.

23 LANGUAGES Point WikiLens at any major Wikipedia edition, with an automatic English fallback when a title only exists there.

YOURS TO SHAPE Three popup sizes. Light, dark, and auto themes. An optional Alt+select trigger, and a per-site disable list for sites where you want quiet. Esc dismisses the popup, and nothing triggers while you type in forms or editors. Plays nicely with Dark Reader and hover-zoom extensions.

ALWAYS AT HAND The toolbar popup keeps your recent lookups nearby (stored only on your device) and lets you look up titles directly.

PRIVATE BY DESIGN Your selection travels to Wikimedia's APIs (Wikipedia and Wikidata) and nowhere else. No analytics, no tracking, no accounts. Free software under the GPL-3.0, source at github.com/Ville-Mattila/wikilens.
Rated 0 by 0 reviewers
Log in to rate this extension
There are no ratings yet

Star rating saved

5
0
4
0
3
0
2
0
1
0
No reviews yet
Permissions and data

Required permissions:

  • Access your data for all websites

Optional permissions:

  • Access your data for sites in the wikipedia.org domain

Data collection:

  • The developer says this extension doesn't require data collection.
Learn more
More information
Add-on Links
  • Homepage
  • Support site
  • Support Email
  • Copy add-on ID
Version
1.4.1
Size
44.06 KB
Last updated
3 hours ago (Jul 10, 2026)
Related Categories
  • Search Tools
License
GNU Affero General Public License v3.0 only
Privacy Policy
Read the privacy policy for this add-on
Version History
  • See all versions
Tags
  • image search
  • scholar
  • search
Add to collection
Report this add-on
Go to Mozilla's homepage

Add-ons

  • About
  • Firefox Add-ons Blog
  • Extension Workshop
  • Developer Hub
  • Developer Policies
  • Community Blog
  • Forum
  • Report a bug
  • Review Guide

Download

  • Download Firefox
  • Windows
  • macOS
  • iOS
  • Android
  • Linux
  • All

Latest Builds

  • Nightly
  • Beta

Firefox for Business

  • Enterprise

Community

  • Connect
  • Contribute
  • Developer

Follow

  • Instagram
  • YouTube
  • TikTok
  • Bluesky
  • Podcast
  • Privacy
  • Cookies
  • Legal

Except where otherwise noted, content on this site is licensed under the Creative Commons Attribution Share-Alike License v3.0 or any later version.