google-chromexmodmap
I remap Insert,Home,Page Up, Delete, End, and Page Down, and it have worked for many years, but with the latest Google Chrome update, it ignores the remapping, and preforms the action if it where were no remapping. Outside of Chrome the remapping works.
Any idea how to get Chrome to honour the remapped keys?
One of the possibilities is that your browser's profile has been corrupted. Without doing anything that could cause you to lose data, you could try making a new profile as described here: Create a new browser user profile in the section on Linux.
But, in short (although you should read the link above completely),
~/.config/google-chrome/Default to
~/.config/google-chrome/Default.bak.Note that .config is a hidden folder. You'll need to enable viewing of hidden files and folders in your File Manager. Of course, if you use the command line, you could run something like:
mv ~/.config/google-chrome/Default ~/.config/google-chrome/Default.bak
If your problem is fixed, gradually copy over only files that you absolutely need (because some of them may be responsible for your problem in the first place) from Default.bak to the new Default folder that Chrome automatically creates.
Further, since you need your bookmarks, they are stored as a simple text file called Bookmarks in the Default folder so copying them over from Default.bak to the new Default should probably not break anything and give you back your bookmarks. Again, it's better to do this when Chrome is not running at all.
As for "configuration of my address bar", I don't know what that means. Perhaps you may want to edit your question to explain that aspect.
Edit: if you don't want to go the "new profile" route and if you have another Google account, you may try adding a new user. That option is available in chrome://settings. Do take look at the options which include importing stuff from another profile!
Switch to a virtual console (CTRL+ALT+F1) and run
showkey -s
This will print out the scancodes of the keys, so just press those left and right CTRL keys and see whether they have the same scancodes. After you verified that, wait 10 seconds and don't press any key, so the showkey program can return. Then switch back to X (ALT+F7).
If the scancodes were different, then there is hope that those keys can be remapped differently (because the kernel sees them different), if the scancodes are the same, then there is no way for a different remapping.
Best Answer
I do similar key remappings and have had the same problem. I'm not sure that xmodmap remappings ever really worked properly in Chrome. For example, in Google Sheets, pressing the modifier key (caps lock in my case) would clear the current cell.
I've solved the problem by (a) buying a new USB keyboard that supports QMK firmware and (b) discovering that my System76 laptop makes customizing the keyboard firmware trivial.
I realise that both those options likely involve new hardware and significant expense, so aren't ideal.
I think the fact that Chrome is able to bypass the remapped keys indicates that the remapping is being done at too high a level. Possibly remapping using evdev might work better, but I haven't tried that. Good luck and sorry I don't have a more general solution.