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+# Legacy Bromite AdBlock engine
+
+For compatibility, in Cromite you will still find the old Bromite adblock.
+Since v77 Bromite uses [Chromium subresource filter](https://github.com/chromium/chromium/tree/master/components/subresource_filter) with the full filter lists mentioned in the README.
+
+This engine does not currently support CSS rules; as a result some sites will show ads.
+
+## Update mechanism
+
+The Bromite AdBlock Update Service checks at startup (after 5 seconds) if new Bromite filters are published; if no new filters are available (checked via `Last-Modified` header) then update is skipped.
+
+~~Filters are downloaded from https://www.bromite.org/filters/ and they are published via https://github.com/bromite/filters~~
+
+NOTE October 2024: the domain bromite.org is due to expire, in cromite it will not be possible to use the indicated url.
+
+## Original Bromite AdBlock engine
+The ad-blocking engine of Bromite till v76 was an improved version of the original engine of [NoChromo](https://forum.xda-developers.com/android/apps-games/app-nochromo-wild-browser-appears-t3130776), which is a very simple ad-blocking engine if compared to the others available.