1340481 - Firefox on (Fedora) Linux will only use one process despite e10s being enabled

Status: RESOLVED INCOMPLETE

(Firefox :: Untriaged, defect)

Description

[Ibrahim Ngeno]

User Agent: Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:51.0) Gecko/20100101 Firefox/51.0
Build ID: 20170126153103

Steps to reproduce:

I ran Firefox 51 on Fedora Linux, enabled multiprocessor and disabled all incompatible plugins


Actual results:

It only uses on thread, no matter how many tabs are open, I also do not get the option to "open in new e10s tab"


Expected results:

Multiple (at least 2) Firefox processes as well as the ability to open a new link in another process

Comment 1

[YF (Yang)]

Bug 1312100?

Comment 2

[Emil Pasca [:emilpasca]]

Mozilla/5.0 (X11; Linux x86_64; rv:51.0) Gecko/20100101 Firefox/51.0

I have tested this issue on Fedora x64 Firefox release (51.0.1) and the latest Nightly (54.0a1-20170221110300) and could not reproduce it.
When running Firefox with e10s enabled, you can observe in the Task Monitor, that two processes are running, one named "firefox" and the other "Web Content" which is the other firefox process.
When opening more than 2 tabs or more, you will only see this two processes, this is the expected behavior.

Do you see the "Web Content" process in your task monitor?

Also the option to "open in new e10s tab" is only available on Nightly builds, that is why you won't see this option in the Firefox release version.

Comment 3

[Emil Pasca [:emilpasca]]

Marking this as Resolved - Incomplete due to the lack of response from the reporter.

If anyone can still reproduce it on latest versions, feel free to reopen the issue and provide more information.