underctrl-extension-v1.4.5

UnderCtrl v1.4.5

One folder, one manifest.json — installs the same way in Chrome, Brave, Edge, Arc, and Firefox (128+).

Fixed

• Firefox didn't actually work before this. The manifest only declared background.service_worker, which Firefox's Manifest V3 doesn't support — it needs background.scripts instead. manifest.json now declares both, pointing at the same src/background.js, so each browser uses the key it understands.
• Added browser_specific_settings.gecko (id + strict_min_version: 128.0) so Firefox has a proper add-on ID and won't half-break on WebRTC protection, which needs Firefox 128+.
• Cleaned up leftover branding from an earlier project name in tracker_list.js and the packaging script.

Changed

• Popup footer now reads "UnderCtrl v1.4.5 · by Nulltrace"; manifest.json and LICENSE credit Nulltrace.
• README rewritten: honest feature table, a "what this is not" section, and a single install path covering every browser.

Note on a harmless Chrome warning

Chrome/Brave/Edge/Arc may show a manifest note about the background.scripts key — that's expected, it's only there for Firefox, and Chrome has ignored it (no functional effect) since Chrome 121.

Not changed

No blocking rules added/removed, no new permissions, no UI changes — this is a cross-browser compatibility + attribution release.

Install

Download underctrl-extension-v1.4.5.zip below, unzip it, then Load unpacked (Chrome/Brave/Edge/Arc) or Load Temporary Add-on (Firefox, via about:debugging). Full instructions in the README.