Highlighter SEO by William

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Highlighter SEO version history - 9 versions

Be careful with old versions! These versions are displayed for testing and reference purposes.You should always use the latest version of an add-on.
Latest version
Version 4.1
Released May 26, 2026 - 25.33 MB
Works with firefox 115.0 and later
Welcome to version 4.0!
The entire design is new, with an improved UI/UX for a better experience, and 6 bugs have been fixed. And add 8 languages :
- New Design SF Pro, 16–20px cards, green switches, bento grid
- 9 languages (auto-detect + 9 flag options)
- Side Panel enabled by default + auto-refresh on navigation-
- CSS leak fixed (content-styles.css separated)
- Defensive null checks everywhere
- G.Index / G.Cache status indicators separated from buttons
- Custom search via Enter key
- HREF Lang with flag + code pills
- Polish 301 Check (color-coded HTTP status badges)
- Bar heights proportional to count
Source code released under All Rights Reserved
Download Firefox and get the extension
Download file
Older versions
Version 3.3
Released Mar 29, 2025 - 3.87 MB
Works with firefox 58.0 and later
- Ajout de nouvelle API Open Routeur et Ollama
- Ajout de la recherche customisé
Source code released under All Rights Reserved
Download file

Latest version