684448 - Registering an nsIDOMGlobalPropertyInitializer using "category JavaScript-global-property" has no effect in Fennec

Status: RESOLVED WONTFIX

(Firefox for Android Graveyard :: Extension Compatibility, defect)

Description

[Jesse Ruderman]

I installed https://www.squarefree.com/extensions/domFuzzLite2.xpi in Fennec (after adding a targetApplication) and it didn't work.

When I tried to use fuzzPriv in a content process, I just get "fuzzPriv is not defined", with no indication that my component was even loaded.

I need this in order to run my DOM fuzzer on Fennec.

Comment 1

[Jesse Ruderman]

Attachment: demonstrates that nsIDOMGlobalPropertyInitializer works when not part of an extension

Alon Zakai suggest that I try my code as "part of the browser", to find out whether the bug is specific to extensions.

It does work when "part of the browser", so I guess the bug is specific extensions.

Based on https://bug669240.bugzilla.mozilla.org/attachment.cgi?id=555878

Comment 2

[Jesse Ruderman]

Attachment: list-fonts.html

A simple way to tell whether the fuzzPriv object is working.

Comment 3

[[:fabrice] Fabrice Desré]

Jesse, we don't load extension's components in the content process, but you can do it yourself in a frame script, and use the category manager to register the component in the appropriate category.

Comment 4

[Jesse Ruderman]

I'll try that. Seems to defeat the purpose of declarative, low-performance-impact APIs, though :(

Comment 5

[Jesse Ruderman]

How do I tell addCategoryEntry where to find the component?

Comment 6

[[:fabrice] Fabrice Desré]

Adblockplus is doing it like this:
https://hg.adblockplus.org/adblockplus/file/ca58ad5ea9b1/modules/ContentPolicyRemote.jsm

Comment 7

[Jesse Ruderman]

Ian Melven helped port the DOM fuzzer extension to frame scripts and DOMWindowCreated events, so this doesn't block DOM fuzzing of Fennec any more.

But it's sad that the nsIDOMGlobalPropertyInitializer API doesn't work in Fennec, since it has such great performance characteristics.

Comment 8

[BMO Automation]

Closing all opened bug in a graveyard component