by animadversor » Sun Jun 11, 2017 12:18 pm
Several have noted that PEP has stopped working for them and have sought the cause. At least in my case, it does not work when Electrolysis (multiple process) () is enabled. Electrolysis is being rolled out gradually according to the schedule at . Users can determine whether or not it is enabled for their installation of Firefox by going to about:support (or selecting Troubleshooting Information from the Help menu) and seeing whether or not the Multiprocess Windows entry has a number greater than 0. If so, they can try disabling it by going to about:config and searching for (or, if necessary, creating), the Boolean string browser.tabs.remote.force-enable and setting it to false. This worked for me.
Last edited by
animadversor on Sun Jun 11, 2017 3:07 pm, edited 1 time in total.