i18n.detectLanguage does not work

[FilipePS]

Steps to reproduce

Call the function browser.i18n.detectLanguage
Example: browser.i18n.detectLanguage("Hello", r => console.log(r))

Expected behavior

...

Actual behavior

This error is generated
[Exception... "File error: Not found" nsresult: "0x80520012 (NS_ERROR_FILE_NOT_FOUND)" location: "JS frame :: chrome://extensions/content/parent/ext-i18n.js :: detectLanguage :: line 34" data: no]

Device information

• Device vendor / model and Android version: Moto g7 play Android 10
• Firefox for Android version: Nightly 210324

This problem has been occurring for more than 1 year.

┆Issue is synchronized with this Jira Task

[mcarare]

@FilipePS I suppose you use this for a web extension. Does this work on Firefox for desktop?

[FilipePS]

@FilipePS I suppose you use this for a web extension. Does this work on Firefox for desktop?

Yes

[kbrosnan]

Moved to bugzilla: https://bugzilla.mozilla.org/show_bug.cgi?id=1712214

Change performed by the Move to Bugzilla add-on.

[Rob--W]

FYI this got fixed in Firefox 106.