1830852 - Set untrust integrity level on extension processes for Windows

Status: RESOLVED DUPLICATE of bug 1831036

(Firefox :: Security, enhancement)

Description

[Tom25519]

Now Firefox extension process have "low" integrity level, if possible, drop it to "untrusted", the same as Chromium.

Note: If some extensions need to run in "low" integrity level, once firefox could run every extension in separate processes (https://bugzilla.mozilla.org/show_bug.cgi?id=1827085), we could run them in "low" integrity level, and others run in "untrusted".

Comment 1

[Tom25519]

Or, if extension needs to read/write files on local disk which need higher integrity level, parent process as broker, extension call it to do that, all exrension processes have "untrusted" integrity level.