Not sure why this is happening or why the ./firefox command keeps repeating...


$uname -a

Linux 4.4.0-47-generic #68-Ubuntu SMP UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

$lsb_release -a

No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 16.04.1 LTS Release: 16.04 Codename: xenial

closed as unclear what you're asking by Jens Kubieziel Nov 12 '16 at 23:02

Please clarify your specific problem or add additional details to highlight exactly what you need. As it's currently written, it’s hard to tell exactly what you're asking. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.


These are threads, this is normal.

They're not multiple instances of firefox but instead a single instance that has multiple threads created for it. This may be more apparent if you press F5 to view it as a tree, you will see a main firefox instance with multiple children.

When a process wants to run tasks in parallel it will often create a new thread. The thread will run the task while in the background, each of these threads will appear as a "new" process while in fact they maintain (most) of the same process space as the initial process.

See: Thread (Computing).

Not the answer you're looking for? Browse other questions tagged or ask your own question.