4 months ago
2 months ago


(Reporter: Felipe, Unassigned)


(Depends on 6 bugs, {meta})

Dependency tree / graph

Firefox Tracking Flags

(firefox67 affected)


(Whiteboard: [meta])

Due to the simplicity of using the hidden window for several tasks, it has been an appealing functionality over the years. However, that led to it being over-used, and shrinking its usage should have performance and memory benefits.

In most cases, there are some simple and sometimes not-so-simple alternatives for it.

Bug 827976 is making it to be lazily created, and I'd like to reach a point where it's not used at all in a normal browsing session (without add-ons)

This bug is intended to track its removal from critical and non-critical paths not handled by bug 827976, and also other related work found while investigating it.

Depends on: 1527220
Depends on: 1351078
Depends on: 1528108
Depends on: 1528115
Depends on: 1531854
Depends on: 1546737
Depends on: 1546738
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