Enabling extensions during incognito mode


Having trouble with MetaMask extension while in incognito mode.

Brave: 0.22.721
V8: 6.6.346.32
rev: bfe7cdd026c68013236ebe206a33448db9370fca
Muon: 6.0.12
OS Release: 17.5.0
Update Channel: Release
OS Architecture: x64
OS Platform: macOS
Node.js: 7.9.0
Brave Sync: v1.4.2
libchromiumcontent: 66.0.3359.170


We have a request logged to allow extensions to work in Private Tabs: https://github.com/brave/browser-laptop/issues/7907


closed #3