WPT
This page compares scores on the Web Platform Tests across web engines, using the latest master runs from wpt.fyi and Blitz's own test runner.
Spec: https://w3c.github.io/webextensions/specification/index.html ↗
Runs: Chrome 155.0.8039.0 (wpt@3f6b09ae3, 2026-09-03) | Firefox 157.0a1 (wpt@3f6b09ae3, 2026-09-03) | Safari 251 preview (wpt@5ce815a83, 2026-08-27) | Ladybird 1.0-795e1 (wpt@7e3d005d7, 2026-09-03) | Servo Servo 0.6 (wpt@09159dcb3, 2026-09-02) | Blitz 188486089 (wpt@a95401e4e, 2026-09-02)
Sort areas: alphabetical | by subtest count
| Area | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| Total | 100.0%42/42 | 66.7%28/42 | 61.9%26/42 | 0.0%0/42 | 0.0%0/42 | 0.0%0/42 |
| Test | Chrome | Firefox | Safari | Ladybird | Servo | Blitz |
|---|---|---|---|---|---|---|
| browser.alarms.extension.html | 8/8 | 6/8 | 8/8 | 0/8 | 0/8 | NOT RUN |
| browser.bookmarks.extension.html | 7/7 | 6/7 | 1/7 | 0/7 | 0/7 | NOT RUN |
| browser.browsingData.extension.html | 8/8 | 8/8 | 1/8 | 0/8 | 0/8 | NOT RUN |
| browser.idle.extension.html | 5/5 | 5/5 | 2/5 | 0/5 | 0/5 | NOT RUN |
| browser.runtime.extension.html | 4/4 | 3/4 | 4/4 | 0/4 | 0/4 | NOT RUN |
| browser.storage.extension.html | 10/10 | 0/10 | 10/10 | 0/10 | 0/10 | NOT RUN |