Thanks for the report Jeff.
Can you test an upstream build (as downloaded from
https://www.mozilla.org/en/firefox/download/thanks/), and let us know whether
you're observing the same problem?
** Changed in: firefox (Ubuntu)
Status: New => Incomplete
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https://bugs.launchpad.net/bugs/1949156
Title:
firefox often slows to a crawl on page request
Status in firefox package in Ubuntu:
Incomplete
Bug description:
When opening a URL in a new tab/window, firefox frequently slows to a
crawl. This lasts for several seconds, then recovers. It does not
seem to be related to time since launch. The behaviour is new.
When this happens, other machine processes appear unaffected. I can
continue working with other applications, just not firefox. Top
(/usr/bin/top) shows that GeckoMain is using the majority of CPU at
times like this (approx 20%-30% load on an 8 core system), but this is
not the only time I see this.
I've attached an image of the window title. There appears to be an
animation that starts at the left and sweeps across the tab towards
the right that also feezes / slows to a crawl at these times.
ProblemType: Bug
DistroRelease: Ubuntu 21.04
Package: firefox 93.0+build1-0ubuntu0.21.04.1
ProcVersionSignature: Ubuntu 5.11.0-38.42-generic 5.11.22
Uname: Linux 5.11.0-38-generic x86_64
AddonCompatCheckDisabled: False
ApportVersion: 2.20.11-0ubuntu65.3
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: jeff 3090 F.... pulseaudio
/dev/snd/pcmC1D0p: jeff 3090 F...m pulseaudio
/dev/snd/controlC0: jeff 3090 F.... pulseaudio
BuildID: 20210927210923
CasperMD5CheckResult: unknown
Channel: Unavailable
CurrentDesktop: i3
Date: Fri Oct 29 07:56:16 2021
DefaultProfileExtensions: extensions.sqlite corrupt or missing
DefaultProfileIncompatibleExtensions: Unavailable (corrupt or non-existant
compatibility.ini or extensions.sqlite)
DefaultProfileLocales: extensions.sqlite corrupt or missing
DefaultProfilePrefErrors: Unexpected character ',' before close parenthesis @
/usr/lib/firefox/omni.ja:greprefs.js:360
DefaultProfilePrefSources: prefs.js
DefaultProfileThemes: extensions.sqlite corrupt or missing
EcryptfsInUse: Yes
ForcedLayersAccel: False
IfupdownConfig:
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
InstallationDate: Installed on 2015-10-23 (2197 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
IpRoute:
default via 192.168.2.1 dev eth1 proto dhcp metric 100
169.254.0.0/16 dev eth1 scope link metric 1000
172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown
192.168.2.0/24 dev eth1 proto kernel scope link src 192.168.2.157 metric 100
MostRecentCrashID: bp-a0847816-1a40-4e81-8110-dc8171180221
Profile0Extensions: extensions.sqlite corrupt or missing
Profile0IncompatibleExtensions: Unavailable (corrupt or non-existant
compatibility.ini or extensions.sqlite)
Profile0Locales: extensions.sqlite corrupt or missing
Profile0PrefErrors: Unexpected character ',' before close parenthesis @
/usr/lib/firefox/omni.ja:greprefs.js:360
Profile0PrefSources: prefs.js
Profile0Themes: extensions.sqlite corrupt or missing
Profile1Extensions: extensions.sqlite corrupt or missing
Profile1IncompatibleExtensions: Unavailable (corrupt or non-existant
compatibility.ini or extensions.sqlite)
Profile1Locales: extensions.sqlite corrupt or missing
Profile1Plugins:
iTunes Application Detector -
/usr/lib/mozilla/plugins/librhythmbox-itms-detection-plugin.so
Shockwave Flash - /usr/lib/flashplugin-installer/libflashplayer.so
Profile1PrefErrors: Unexpected character ',' before close parenthesis @
/usr/lib/firefox/omni.ja:greprefs.js:360
Profile1PrefSources: prefs.js
Profile1Themes: extensions.sqlite corrupt or missing
Profile2Extensions: extensions.sqlite corrupt or missing
Profile2IncompatibleExtensions: Unavailable (corrupt or non-existant
compatibility.ini or extensions.sqlite)
Profile2Locales: extensions.sqlite corrupt or missing
Profile2Plugins: Shockwave Flash -
/usr/lib/flashplugin-installer/libflashplayer.so
Profile2PrefErrors: Unexpected character ',' before close parenthesis @
/usr/lib/firefox/omni.ja:greprefs.js:360
Profile2PrefSources: prefs.js
Profile2Themes: extensions.sqlite corrupt or missing
Profile4Extensions: extensions.sqlite corrupt or missing
Profile4IncompatibleExtensions: Unavailable (corrupt or non-existant
compatibility.ini or extensions.sqlite)
Profile4Locales: extensions.sqlite corrupt or missing
Profile4PrefErrors: Unexpected character ',' before close parenthesis @
/usr/lib/firefox/omni.ja:greprefs.js:360
Profile4PrefSources: prefs.js
Profile4Themes: extensions.sqlite corrupt or missing
Profile5Extensions: extensions.sqlite corrupt or missing
Profile5IncompatibleExtensions: Unavailable (corrupt or non-existant
compatibility.ini or extensions.sqlite)
Profile5Locales: extensions.sqlite corrupt or missing
Profile5PrefErrors: Unexpected character ',' before close parenthesis @
/usr/lib/firefox/omni.ja:greprefs.js:360
Profile5PrefSources: prefs.js
Profile5Themes: extensions.sqlite corrupt or missing
Profile6Extensions: extensions.sqlite corrupt or missing
Profile6IncompatibleExtensions: Unavailable (corrupt or non-existant
compatibility.ini or extensions.sqlite)
Profile6Locales: extensions.sqlite corrupt or missing
Profile6PrefErrors: Unexpected character ',' before close parenthesis @
/usr/lib/firefox/omni.ja:greprefs.js:360
Profile6PrefSources: prefs.js
Profile6Themes: extensions.sqlite corrupt or missing
Profile7Extensions: extensions.sqlite corrupt or missing
Profile7IncompatibleExtensions: Unavailable (corrupt or non-existant
compatibility.ini or extensions.sqlite)
Profile7Locales: extensions.sqlite corrupt or missing
Profile7PrefErrors: Unexpected character ',' before close parenthesis @
/usr/lib/firefox/omni.ja:greprefs.js:360
Profile7PrefSources: prefs.js
Profile7Themes: extensions.sqlite corrupt or missing
Profile8Extensions: extensions.sqlite corrupt or missing
Profile8IncompatibleExtensions: Unavailable (corrupt or non-existant
compatibility.ini or extensions.sqlite)
Profile8Locales: extensions.sqlite corrupt or missing
Profile8PrefErrors: Unexpected character ',' before close parenthesis @
/usr/lib/firefox/omni.ja:greprefs.js:360
Profile8PrefSources: prefs.js
Profile8Themes: extensions.sqlite corrupt or missing
Profile9Extensions: extensions.sqlite corrupt or missing
Profile9IncompatibleExtensions: Unavailable (corrupt or non-existant
compatibility.ini or extensions.sqlite)
Profile9Locales: extensions.sqlite corrupt or missing
Profile9PrefErrors: Unexpected character ',' before close parenthesis @
/usr/lib/firefox/omni.ja:greprefs.js:360
Profile9PrefSources: prefs.js
Profile9Themes: extensions.sqlite corrupt or missing
RunningIncompatibleAddons: False
SourcePackage: firefox
UpgradeStatus: Upgraded to hirsute on 2021-08-28 (61 days ago)
dmi.bios.date: 05/21/2014
dmi.bios.release: 4.6
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: B220P007
dmi.board.asset.tag: NA
dmi.board.name: ZBOX-ID92/ZBOX-IQ01
dmi.board.vendor: ZOTAC
dmi.board.version: XX
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvrB220P007:bd05/21/2014:br4.6:svnZOTAC:pnZBOX-ID92/ZBOX-IQ01:pvrXX:skuNA:rvnZOTAC:rnZBOX-ID92/ZBOX-IQ01:rvrXX:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.family: NA
dmi.product.name: ZBOX-ID92/ZBOX-IQ01
dmi.product.sku: NA
dmi.product.version: XX
dmi.sys.vendor: ZOTAC
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