Mozilla Thunderbird on new websites

1. Mozilla Thunderbird appeared on 2 new sites in the last 30 days.^[1]

The line is the 7-day average share of new sites that use Mozilla Thunderbird, since 23 September. It starts at our first detection.

#	Movement	Tool	Share of all sites	Share of category	Bar
1	–	HTTP/3	50.5%	>99.9%
2	–	Tor Onion Service	<0.1%	<0.1%
3	▼3	United States Semantic Standard	<0.1%	<0.1%
4	▼1	I2P	<0.1%	<0.1%
5	▼1	njump	<0.1%	<0.1%
…
14		Mozilla Thunderbird	<0.1%	<0.1%

All-time shares across the new sites we track: of all of them, and of the sites using any Protocol tool. All 23 in Protocol

2 of the 2 sites using Mozilla Thunderbird are product launches we list individually.

Site	Found	Also detected
Replykeep — the AI front desk for people who get called for jobs replykeep.com	Oct 6
ErikrafT Drop™ drop.erikraft.com · Brazil	Sep 30

1. These figures cover websites that went live since April 2026, not the web as a whole.