Add an origin attribute called 'firstPartyDomain'.
This value will be extracted from the URL bar.
And the purpose of this attribute is used to isolate the data-jars.
Please see the tor documentation.
https://www.torproject.org/projects/torbrowser/design/#identifier-linkability
The idea is like a superset of 'reject third party cookies', but not
only apply for cookies, it also applies to all data-jars like localStorage,
indexedDB and so on.
So basically an iframe will have its own data-jar, and this data-jar is
isolated by the URL from URL bar, for instance, an iframe
https://facebook.com inside https://cnn.com won't share data-jar with
the iframe (https://facebook.com) in https://bbc.com
An explanation of the Mozilla Source Code Directory Structure and links to
project pages with documentation can be found at:
https://developer.mozilla.org/en/Mozilla_Source_Code_Directory_Structure
For information on how to build Mozilla from the source code, see:
http://developer.mozilla.org/en/docs/Build_Documentation
To have your bug fix / feature added to Mozilla, you should create a patch and
submit it to Bugzilla (https://bugzilla.mozilla.org). Instructions are at:
http://developer.mozilla.org/en/docs/Creating_a_patch
http://developer.mozilla.org/en/docs/Getting_your_patch_in_the_tree
If you have a question about developing Mozilla, and can't find the solution
on http://developer.mozilla.org, you can try asking your question in a
mozilla.* Usenet group, or on IRC at irc.mozilla.org. [The Mozilla news groups
are accessible on Google Groups, or news.mozilla.org with a NNTP reader.]
You can download nightly development builds from the Mozilla FTP server.
Keep in mind that nightly builds, which are used by Mozilla developers for
testing, may be buggy. Firefox nightlies, for example, can be found at:
https://archive.mozilla.org/pub/firefox/nightly/latest-mozilla-central/
- or -
http://nightly.mozilla.org/
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