Mozilla Solo shutdown, in numbers.
Mozilla is closing Solo, its AI website builder, and says every Solo website and its data will be deleted on November 30, 2026. Solo publishes a list of the websites it hosts. We counted it on November 11, 2026. Hundreds of them were still being changed after Mozilla announced the closing.
- 36,697websites in Solo’s public list
- 13,337changed in 2026
- 7,513changed since May 1, 2026
- 3,192changed since August 1, 2026
- 656changed since October 1, 2026, when Mozilla gave notice
- 135changed in November, with the closing weeks away
The websites in use
What the 7,510 changed since May hold.
- 76% are a single page. 5,686 of them. Many belong to a small business or a person offering a service: photographers, consultants, builders, cleaners, cafés and the like.
- 86% are in English. 6,490 of them. Then Spanish (290), Italian (265), French (248) and German (150).
- 54% show a business address, and 11% publish an email address.
- A typical one has 15 pictures. Across 3,985 of them, half have 15 pictures or more, and 84% have at least 10.
Before November 30
Mozilla’s download leaves the pictures behind.
In a Solo account’s settings, Download Website Data gives a ZIP file: an HTML copy of the website and a list of links to its pictures, contact-form messages and newsletter sign-ups. Mozilla’s page says the picture files themselves are not in it. With 15 pictures on a typical website, that is 15 files to save by hand before the links stop working on November 30.
A domain bought through Solo does not move by itself either. Mozilla moves one into a Name.com account of the owner’s once the owner sends that account’s code. The steps are here.
How we counted
Only what Solo makes public.
- The list. Solo publishes its websites in a sitemap of sixteen parts at soloist.ai/sitemap, each website with the date its home page last changed. We read all sixteen on November 11, 2026. “Changed since” means that date.
- The websites changed since May. For each, we read the public data Solo sends with its home page on November 10, 2026: its language, its pages, and the contact details its owner chose to show. 7,510 of them answered.
- The pictures. Counted on the public pages of 3,985 of those websites, read on November 10 and 11, 2026.
- What we did not do. We signed in to nothing and read nothing that is not public. Mozilla’s dates and steps come from its Solo shutdown questions, read on November 11, 2026.
You may quote these numbers; please link to this page. Questions about them: steve@jaybirddigital.com. Jaybird Digital builds and hosts websites for small businesses, and moves Solo websites here.
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