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Both Firefox and Palemoon have been starting super slow on my i3 manjaro recently. Can take more then a minute before I see any screen. It runs fine after it has started up.

I am at a loss to figure out what is causing this slowness. 

uname -a
Linux laptop-pc 5.3.8-3-MANJARO #1 SMP PREEMPT Sun Nov 3 14:19:23 UTC 2019 x86_64 GNU/Linux

Browser versions

Firefox version 70.0.1
Palemoon version 28.7.1

I have tried a number of performance enhancements. Most of them are about improving performance after it is already started.

This slowness started of a recent clean re-installation of my os.

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1 Answer 1

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After looking into this issue for a few months.

I finally found out what the problem was with the slow startups.

hostname
newname-pc

sudo vim /etc/hosts
...
127.0.1.1   old-pc newname-pc
...

on some systems the loopback ip could be 127.0.0.1.

Once I added the hostname to the hosts file and I could now resolve newname-pc to an IP address firefox starts up instantly.

Slow startups because my local hostname was changed after my installation. Firefox and palemoon both do a resolve on the local hostname during startup and will only complete the startup after this has timed out or resolved.

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  • Thanks! This has been driving me nuts.
    – richardw
    Commented Nov 22, 2019 at 20:45
  • This also affected LibreOffice having multiple crashes. After putting in the hostname / ip mapping that was resolved as well.
    – nelaaro
    Commented Nov 28, 2019 at 9:20

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