Domaintoolbelt - WHOIS & Search by kis

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Domaintoolbelt - WHOIS & Search version history - 4 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.
Older versions
Version 2.0.0
Released 3 May 2026 - 172.67 kB
Works with firefox 109.0 and later
v2.0 release.
- New overlay UI. Opens next to the page instead of in a separate popup.
- Marketplace listing prices show in the WHOIS panel when a domain is parked for sale.
- Quick search bar in the popup checks multiple TLDs at once.
- Caching rewritten so repeat lookups are faster.
- More TLDs supported through the updated RDAP routing.
- On chrome://, the Web Store, and error pages, a compact fallback popup runs the WHOIS check directly.
Source code released under All Rights Reserved
Download file
Version 1.2.0
Released 28 Feb 2026 - 129.52 kB
Works with firefox 109.0 and later
New Features:
Affixes: Search for domain name variants using prefixes and suffixes. Enable the toggle in the search bar or directly from a WHOIS result to instantly explore available alternatives built around your keyword. Read
Improvements:
Background Links: All external links (visit domain, marketplaces) now open in a background tab — the popup stays open so you can keep researching.
Bug Fixes;
Floating icon wasn't dismissing when clicking outside the selected text or scrolling
check Changelog
Source code released under All Rights Reserved
Download file

Latest version