Thank you for the report, and sorry for the lack of timely feedback. I just tested this in a fully up-to-date 18.04 virtual machine, and I cannot observe the issue you're describing. The Ctrl+Space shortcut switches between input methods regardless of whether the address bar is focused or a text field in a web page.
Note that I have firefox 69.0.1+build1-0ubuntu0.18.04.1 and gcin 2.8.5+dfsg1-4build4. You mention you're using gcin 2.8.9, where does it come from? If you downgrade to 2.8.5 from the archive, does it fix the problem? ** Changed in: firefox (Ubuntu) Status: New => Incomplete -- 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/1843817 Title: Weird behavior of chaning input method on webpages Status in firefox package in Ubuntu: Incomplete Bug description: I'm finding a weird behaviour of changing input method "only on webpages." I need to hit hotkey (Ctrl+Space) twice to trigger the change if my courser is in text boxes "on the page." If the courser is in URL bar or search bar or anywhere firebox window itself, this phenomenon doesn't exist. I am using gcin 2.8.9 and is switching between English and traditional Chinese. Thanks! ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: firefox 69.0+build2-0ubuntu0.18.04.1 Uname: Linux 5.2.5-050205-generic x86_64 AddonCompatCheckDisabled: False ApportVersion: 2.20.9-0ubuntu7.7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: yenyung_chang 1727 F.... pulseaudio BuildID: 20190828152820 Channel: Unavailable CurrentDesktop: ubuntu:GNOME Date: Thu Sep 12 11:53:04 2019 Extensions: extensions.sqlite corrupt or missing ForcedLayersAccel: False IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback IncompatibleExtensions: Unavailable (corrupt or non-existant compatibility.ini or extensions.sqlite) InstallationDate: Installed on 2019-03-26 (170 days ago) InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210) IpRoute: default via 192.168.0.1 dev wlp2s0 proto dhcp metric 600 169.254.0.0/16 dev wlp2s0 scope link metric 1000 192.168.0.0/24 dev wlp2s0 proto kernel scope link src 192.168.0.108 metric 600 Locales: extensions.sqlite corrupt or missing PrefErrors: Unexpected character ',' before close parenthesis @ /usr/lib/firefox/omni.ja:greprefs.js:997 PrefSources: prefs.js ProcEnviron: PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/bash Profiles: Profile0 (Default) - LastVersion=69.0/20190828152820 (In use) RunningIncompatibleAddons: False SourcePackage: firefox Themes: extensions.sqlite corrupt or missing UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 08/05/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.7.0 dmi.board.name: 0KTW76 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 10 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.7.0:bd08/05/2019:svnDellInc.:pnXPS139380:pvr:rvnDellInc.:rn0KTW76:rvrA00:cvnDellInc.:ct10:cvr: dmi.product.family: XPS dmi.product.name: XPS 13 9380 dmi.product.sku: 08AF dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/firefox/+bug/1843817/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp