I found this article from Martin Stransky: https://mastransky.wordpress.com/2019/01/08/fedora-firefox-heads-to- updates-with-pgo-lto/
It appears Fedora's Firefox package is build with PGO. Is Ubuntu's .DEB package built with PGO as well? There's also this documentation from Mozilla: https://firefox-source- docs.mozilla.org/build/buildsystem/pgo.html -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to firefox in Ubuntu. https://bugs.launchpad.net/bugs/1908082 Title: Ubuntu Firefox is 15% slower than Flatpak Firefox for speedometer benchmark Status in firefox package in Ubuntu: Incomplete Bug description: Steps to reproduce: I installed Firefox Flatpak (https://flathub.org/apps/details/org.mozilla.firefox) and Chrome. I executed closed all apps and processes and one by one I executed Speedometer test (https://browserbench.org/Speedometer2.0/) in each browser 3 times. I took the max score for reach browser out of the 3 executions of the test. Actual results: Results 100.3 - Firefox Flatpak 85.42 - FIrefox DEB (pre-installd from the store) 100.3 - Google Chrome The preinstalled DEB package Firefox was slower than both Firefox Flatpak and Chrome Expected results: I expected Firefox DEB and Firefox Flatpak to have the same results. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1908082/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
