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Firefox takes 30 seconds to start

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Hi, mozilla firefox on an older linux machine takes about 30 seconds to start up.

  • Computer: HPpavillon T3000
  • CPU: AMD Athlon64 3500+ 2 GHZ
  • RAM: 2 GB (4 x 512 MB) = Maximum
  • GPU: GeForce 8600 GT
  • SSD: 120 GB
  • HDD: 250 GB
  • OS: Suse Leap 42.2

I tried LXDE, LXQT and Plasma5 desktop on the same machine. The bootup time of firefox seems not to depend on the desktop installed on this machine. I run Version 54.0 of firefox. I use an empty startup page. There are no add-ons installed. I also tried firefox in save mode. I deleted the browser history.

Nothing helped to speed up the start of firefox. Google chrome-browser starts in less than 5 sec on the same computer ...

Is there a way to speed up the startup process of firefox on this machine?

Hi, mozilla firefox on an older linux machine takes about 30 seconds to start up. * Computer: HPpavillon T3000 * CPU: AMD Athlon64 3500+ 2 GHZ * RAM: 2 GB (4 x 512 MB) = Maximum * GPU: GeForce 8600 GT * SSD: 120 GB * HDD: 250 GB * OS: Suse Leap 42.2 I tried LXDE, LXQT and Plasma5 desktop on the same machine. The bootup time of firefox seems not to depend on the desktop installed on this machine. I run Version 54.0 of firefox. I use an empty startup page. There are no add-ons installed. I also tried firefox in save mode. I deleted the browser history. Nothing helped to speed up the start of firefox. Google chrome-browser starts in less than 5 sec on the same computer ... Is there a way to speed up the startup process of firefox on this machine?

Modified by Ferdinand Gruber

Chosen solution

I have accidentally found something interesting. I had forgotten to connect the network cable to the computer and then firefox startet quickly.

After that I looked more closely at the network settings. I disabled IPv6 support in the network settings. This solved my problem.

Now firefox takes less than 5 seconds to start up. I am happy.

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All Replies (4)

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Can you try using firefox with an empty profile. Create a directory say tmpprofile in /tmp and then in the terminal start firefox like this:

firefox --profile /tmp/tmpprofile --no-remote

and then see if the issue has been solved. The problem could be a big bookmark file or a password database.

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This did not speed up significantly the startup process. But I got some error messages in the terminal window:

firefox --profile /tmp/tmpprofile --no-remote

1502445965407 addons.xpi-utils WARN Disabling foreign installed add-on langpack-en-GB@firefox.mozilla.org in app-global 1502445965461 addons.xpi-utils WARN Disabling foreign installed add-on langpack-es-AR@firefox.mozilla.org in app-global 1502445965511 addons.xpi-utils WARN Disabling foreign installed add-on langpack-it@firefox.mozilla.org in app-global 1502445965552 addons.xpi-utils WARN Disabling foreign installed add-on langpack-da@firefox.mozilla.org in app-global 1502445965618 addons.xpi-utils WARN Disabling foreign installed add-on langpack-zh-TW@firefox.mozilla.org in app-global 1502445965665 addons.xpi-utils WARN Disabling foreign installed add-on langpack-nb-NO@firefox.mozilla.org in app-global 1502445965706 addons.xpi-utils WARN Disabling foreign installed add-on langpack-pt-PT@firefox.mozilla.org in app-global 1502445965750 addons.xpi-utils WARN Disabling foreign installed add-on langpack-cs@firefox.mozilla.org in app-global 1502445965789 addons.xpi-utils WARN Disabling foreign installed add-on langpack-de@firefox.mozilla.org in app-global 1502445965831 addons.xpi-utils WARN Disabling foreign installed add-on langpack-zh-CN@firefox.mozilla.org in app-global 1502445965871 addons.xpi-utils WARN Disabling foreign installed add-on langpack-es-CL@firefox.mozilla.org in app-global 1502445965913 addons.xpi-utils WARN Disabling foreign installed add-on langpack-pt-BR@firefox.mozilla.org in app-global 1502445965953 addons.xpi-utils WARN Disabling foreign installed add-on langpack-ja@firefox.mozilla.org in app-global 1502445965991 addons.xpi-utils WARN Disabling foreign installed add-on langpack-ar@firefox.mozilla.org in app-global 1502445966033 addons.xpi-utils WARN Disabling foreign installed add-on langpack-pl@firefox.mozilla.org in app-global 1502445966071 addons.xpi-utils WARN Disabling foreign installed add-on langpack-ca@firefox.mozilla.org in app-global 1502445966111 addons.xpi-utils WARN Disabling foreign installed add-on langpack-hu@firefox.mozilla.org in app-global 1502445966149 addons.xpi-utils WARN Disabling foreign installed add-on langpack-sv-SE@firefox.mozilla.org in app-global 1502445966189 addons.xpi-utils WARN Disabling foreign installed add-on langpack-ru@firefox.mozilla.org in app-global 1502445966226 addons.xpi-utils WARN Disabling foreign installed add-on langpack-fi@firefox.mozilla.org in app-global 1502445966269 addons.xpi-utils WARN Disabling foreign installed add-on langpack-el@firefox.mozilla.org in app-global 1502445966307 addons.xpi-utils WARN Disabling foreign installed add-on langpack-fr@firefox.mozilla.org in app-global 1502445966345 addons.xpi-utils WARN Disabling foreign installed add-on langpack-es-ES@firefox.mozilla.org in app-global 1502445966386 addons.xpi-utils WARN Disabling foreign installed add-on langpack-nl@firefox.mozilla.org in app-global 1502445966425 addons.xpi-utils WARN Disabling foreign installed add-on langpack-ko@firefox.mozilla.org in app-global

(firefox:2164): Gtk-WARNING **: Theme directory base/ of theme oxygen has no size field

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Can you update firefox to the latest version and see if that helps. At this point I am not sure what could be the problem since the console messages are not out of the ordinary.

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Seçilmiş Həll

I have accidentally found something interesting. I had forgotten to connect the network cable to the computer and then firefox startet quickly.

After that I looked more closely at the network settings. I disabled IPv6 support in the network settings. This solved my problem.

Now firefox takes less than 5 seconds to start up. I am happy.