Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
Log in
Preview of Synopedia – Repeated Word Finder

Synopedia – Repeated Word Finder by BIGBANG MEDIA

🔁 Repeating yourself? Spot repeated words and swap them for a synonym in one click. 6 languages, offline, no data collected.

Available on Firefox for Android™Available on Firefox for Android™
0 (0 reviews)0 (0 reviews)
Download Firefox and get the extension
Download file
Scan the QR code to open this extension in Firefox for Android

Extension Metadata

Screenshots
About this extension
“The lake was calm, the silence was calm, the sky was calm.” Easy to spot on a reread, easy to miss while writing. Synopedia highlights the words that come back too often and suggests synonyms to vary your style. ✍

🖱 How it works
1. Click the icon and paste your text, or right-click inside a text box and choose “Find repeated words in this field”.
2. Repeated words are highlighted, each in its own color, and listed from most to least noticeable.
3. Click a highlighted word to see its synonyms, then click one to replace that occurrence. Capitals are kept.
4. Copy the result, or send it back to the text box in one click.

📏 When is a word flagged?
Closeness matters more than the total. A word is flagged when it appears:
- twice in the same short paragraph
- 3 times within 100 words
- twice less than 20 words apart

Small words (the, and, of, be, have…) are ignored, and plurals count together (calm, calms).

🎓 Who it’s for
Students checking an essay or dissertation, job seekers rereading a cover letter, professionals before sending an email or report, bloggers and copywriters, and anyone writing in a second language.

🌍 Six languages
English, French, Italian, Spanish, German and Catalan, detected from the page or chosen in one click.

🔒 Offline and private
The analysis and the thesaurus run inside the extension. Your text never leaves your computer: no account, no ads, no tracking.

🛡 Permissions
Context menu (the right-click entry), active tab (the text of the field, only after your click), scripting (writing the corrected text back), storage (your language and draft, on your device).

📚 More on Synopedia
Every word has its full page of synonyms, antonyms and definitions on synopedia.com
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

Data collection:

  • The developer says this extension doesn't require data collection.
Learn more
More information
Add-on Links
  • Homepage
  • Support site
  • Copy add-on ID
Version
1.0.1
Size
14.25 MB
Last updated
a month ago (Oct 15, 2026)
Related Categories
  • Language Support
License
All Rights Reserved
Privacy Policy
Read the privacy policy for this add-on
Version History
  • See all versions
Tags
  • scholar
  • word counter
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. Android is a trademark of Google LLC.