Update Firefox support for Crash Reporting API by KirtiRamchandani · Pull Request #29782 · mdn/browser-compat-data

KirtiRamchandani · 2026-06-01T16:41:48Z

Problem

Firefox 152 enables the Crash Reporting API in Nightly builds via dom.reporting.crash.enabled, but BCD still listed the CrashReportContext storage APIs as unsupported in Firefox.

Root cause

The Gecko change only flips the Crash Reporting API preference for Nightly builds, so the existing Chromium-only data needed Firefox support entries behind that preference.

Solution

Update Firefox support for:

api.CrashReportContext
api.CrashReportContext.delete
api.CrashReportContext.initialize
api.CrashReportContext.set
api.Window.crashReport

Each entry is marked as added in Firefox 152 behind dom.reporting.crash.enabled.

Tests

npx --yes npm@11.12.1 --prefix C:\Users\kirti\Documents\PRs\browser-compat-data run lint -- api/CrashReportContext.json api/Window.json
C:\Users\kirti\Documents\PRs\browser-compat-data\node_modules\.bin\prettier.cmd --check C:\Users\kirti\Documents\PRs\browser-compat-data\api\CrashReportContext.json C:\Users\kirti\Documents\PRs\browser-compat-data\api\Window.json
node -e "const fs=require('fs'); for (const f of ['C:/Users/kirti/Documents/PRs/browser-compat-data/api/CrashReportContext.json','C:/Users/kirti/Documents/PRs/browser-compat-data/api/Window.json']) JSON.parse(fs.readFileSync(f,'utf8')); console.log('JSON OK')"
git diff --check

References

github-actions · 2026-06-01T16:42:42Z

Tip: Review these changes grouped by change (recommended for most PRs), or grouped by feature (for large PRs).

Co-authored-by: Hamish Willee <hamishwillee@gmail.com>

hamishwillee · 2026-06-01T23:45:22Z

I am not sure about this (yet).
The window.crashReport and CrashReportContext don't appear in the console.
Also, how can the reporting endpoint which is already reported as working in FF130 be correct if reporting API is only added now https://github.com/mdn/browser-compat-data/blob/main/http/headers/Reporting-Endpoints.json#L104-L116

I mean - I know they are technically different things but adding a context would reasonably change what is the report.

Asking in https://bugzilla.mozilla.org/show_bug.cgi?id=2036160#c4

KirtiRamchandani · 2026-06-02T05:16:54Z

Thanks for checking. I agree this should wait for the needinfo on https://bugzilla.mozilla.org/show_bug.cgi?id=2036160#c4. The pref is present and Nightly-only by default, and the BCD entries are now marked preview, but the runtime exposure and endpoint behavior need confirmation before claiming anything stronger. I’ll leave the BCD PR as-is unless the Bugzilla answer points to a correction.

KirtiRamchandani · 2026-06-02T14:27:44Z

@hamishwillee I tried to CC myself into the Bugzilla case but it seems like I cannot write anything there. Do you mind adding my same mail which is in its CC allowing the appropriate permission? :)

hamishwillee · 2026-06-05T00:51:34Z

Do you mind adding my same mail which is in its CC allowing the appropriate permission? :)

Yes I do mind.
Given this is an MDN tracking issue please let me take this over now.

Update Firefox support for Crash Reporting API

49db6db

github-actions Bot added data:api Compat data for Web APIs. https://developer.mozilla.org/docs/Web/API size:m [PR only] 25-100 LoC changed labels Jun 1, 2026

KirtiRamchandani mentioned this pull request Jun 1, 2026

Document Firefox Crash Reporting API Nightly support mdn/content#44327

Open