NOTE: All packaged Firefox add-ons are affected by Firefox bug #1508827 . A workaround is provided in the bug report. Please do not give negative karma just because of that bug.

Important changes since 1.15.10

The release version of uBO on AMO is not allowed to update its resources.txt asset. This means the version shipped with the extension must be used. However, uBO compile and cache the data in resources.txt, and unless the cache is invalidated, uBO will keep using a potentially out of date version of resources.txt. This has been fixed by unconditionally invalidating the cache when a new version of uBO is detected.

From now on, behind-the-scene network requests will be treated and filtered just like any other network requests. The behind-the-scene scope will be un-whitelisted when migrating to 1.15.20+ from an older version.

This will not apply to current installations of the Firefox/legacy version of uBO, as this would cause serious breakage of the browser given that uBO can see all network requests in Firefox/legacy. However for a fresh install of the Firefox/legacy, you will have to manually add the behind-the-scene scope as a whitelist directive in the Whitelist pane.

Added a new advanced setting: streamScriptInjectFilters. The purpose is to tell uBO to use stream filtering to inject scriptlets where possible. Default to false. Set to true to bring back scriptlet injection through stream filtering as was the default before 1.15.10. A fix has also been added to resolve https://github.com/uBlockOrigin/uAssets/issues/1492, which was the main reason to disable stream filtering-based scriptlets injection in 1.15.10.

Integration of CodeMirror in uBO's dashboard.

Full release notes are on GitHub.