Opened 12 months ago

Last modified 12 months ago

#28375 new defect

improve handling of uninstalled protocol handler — at Initial Version

Reported by: mcs Owned by: tbb-team
Priority: Medium Milestone:
Component: Applications/Tor Browser Version:
Severity: Normal Keywords: ff60-esr
Cc: Actual Points:
Parent ID: Points:
Reviewer: Sponsor:


In (for Firefox 58), Mozilla fixed things so that the protocol handler code would prompt if a protocol handler application was configured and then later removed from the user's system. However, it seems that our patch for #22618 is incompatible with Mozilla's fixed; with Tor Browser in this scenario, opening the protocol handler silently fails and a JS exception is logged to the browser console:

NS_ERROR_FILE_NOT_FOUND: ... external-app-blocker.js:129

(external-app-blocker.js is part of Torbutton).

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