....The latest web extensions for Firefox Quantum will not work with Firefox 52 ESR or any of its forks...
I've never used a Chromium browser on my Vista SP2 machine, but I use the latest WebExtensions version of Adblock Plus as my ad blocker in FF ESR v52.9.0, and according to https://addons.mozilla.org/en-US/firefox/addon/ublock-origin/ the latest WebExtensions version of uBlock Origin v1.17.2 (released 18-Oct-2018) should also work with Firefox ESR v52.9.0. From the version history at https://addons.mozilla.org/en-US/firefox/addon/ublock-origin/versions/:
uBlock Origin Version History 19 Oct 2018.png 18.73KB
Old legacy add-ons have not been compatible with the "regular" desktop Firefox since FF v57 (released in Nov 2017 - see the ghacks.net article Firefox 57 Release Overview) but my Firefox ESR v52.9.0 will support both old legacy (XUL/XPCOM) add-ons as well as newer WebExtensions add-ons. The only caveat is that if any old-style legacy add-on is enabled then this will automatically disable the Electrolysis (e10s) multiprocess feature in my FF ESR v52.9.0 browser. For example, if I enable my old-style legacy Mozilla Archive Format add-on and go to Help | Troubleshooting | Application Basics, Multiprocess Windows (Electrolysis) is "Disabled by add-ons":
FF ESR 52_9_0 Multiprocess Disabled MAF Enabled.png 6.8KB
If I disable my legacy Mozilla Archive Format add-on and only use newer WebExtensions like the latest Adblock Plus, Save Page WE and Bitdefender TrafficLight then Multiprocess Windows (Electrolysis) is "Enabled by default".
FF ESR 52_9_0 Multiprocess Enabled MAF Disabled.png 5.06KB
32-bit Vista Home Premium SP2 * Norton Security v22.214.171.124 * FF ESR v52.9.0 * Adblock Plus v3.3.1 for Firefox
HP Pavilion dv6835ca, Intel Core2Duo T5550 @ 1.83 GHz, 3 GB RAM, NVIDIA GeForce 8400M GS
Edited by lmacri, Today, 05:00 PM.