+++ This bug was initially created as a clone of Bug #1153387 +++ Recent Nightly Recent ABP-dev build EasyList filterlist With e10s off, sorting in the EasyList filterlist by hits takes twice as long with dom.compartment_per_addon;true than with false., regardless of e10s being enabled or not. Benchmark on my machine, Nightly: dom.compartment_per_addon true : 5s dom.compartment_per_addon false: 3s comparison: Firefox 24.8.1 with ABP 2.6.6: 3s Firefox 31.6.1 with ABP 2.6.9: 3s Regression-ranges: Last good revision: 1e2993c99323 (2014-09-24) First bad revision: 1735ff2bb23e (2014-09-25) Pushlog: https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=1e2993c99323&tochange=1735ff2bb23e 35dcddea2c7a Bill McCloskey — Bug 1030420 - Enable compartment-per-addon on Nightly. r=bholley

Although shim-performance is now matching shim-less performance (bug 1164014), the slowdown from compartment-per-addon still occurs. AFAIK compartment-per-addon is for e10s, so I'm adding that tracking bug.

Mass-closing old Extension Compatibility bugs that relate to legacy add-ons or NPAPI plug-ins. If you think this bug is still valid, please reopen or comment. Sorry for the bug spam, and happy Friday!