Modifier keys not working correctly on macOS #2165

Hi, I'm trying out Librewolf and so far I'm liking it a lot, but modifier keys don't appear to be behaving correctly on certain web-based games. For example, Sudokupad is not functioning correctly.

You can try a sample puzzle at https://sudokupad.app/sudoku/hDNMJqPmTh, and try clicking on a cell and then shift-clicking on another; in this case, both cells should be highlighted. Similarly, pressing ctrl-5 should do a central mark of the number 5, shift-5 should do a corner mark, and ctrl-shift-5 should color the square pink.

Instead, ctrl-5 fills the square with a large 5 and switches the default tool, shift-5 does nothing, and ctrl-shift-5 does the same thing as ctrl-5 while also making the cell pink. It seems that cmd-5 is doing what ctrl-5 is supposed to be doing; unfortunately using cmd instead of ctrl leads to conflicts with cmd-key combinations at the OS level.

I am running Librefox 133.0.3-1 on macOS 15.2 Sequoia.

Hi, I'm trying out Librewolf and so far I'm liking it a lot, but modifier keys don't appear to be behaving correctly on certain web-based games. For example, Sudokupad is not functioning correctly.

You can try a sample puzzle at https://sudokupad.app/sudoku/hDNMJqPmTh, and try clicking on a cell and then shift-clicking on another; in this case, both cells should be highlighted. Similarly, pressing ctrl-5 should do a central mark of the number 5, shift-5 should do a corner mark, and ctrl-shift-5 should color the square pink.

Instead, ctrl-5 fills the square with a large 5 and switches the default tool, shift-5 does nothing, and ctrl-shift-5 does the same thing as ctrl-5 while also making the cell pink. It seems that cmd-5 is doing what ctrl-5 is supposed to be doing; unfortunately using cmd instead of ctrl leads to conflicts with cmd-key combinations at the OS level.

I am running Librefox 133.0.3-1 on macOS 15.2 Sequoia.

Try to allow canvas: image

Unfortunately that made no difference to the behavior.

Can confirm: still an issue with the latest two builds 136.0-1 / 136.0-2 in a brand new installation without any addons or changes in about:config.
Same FF build doesn't produce the error. SHIFT key is not registering as modifier in web app.

Debian 12 / Gnome / LibreWolf 135.0.1-1

I see this behaviour on VMware Web Console. There was some head scratching trying to figure out why my VM kept telling me my password was wrong.

any news on that?
Shift key not working on multiple webpages seems like a serious issue if not an incident!

push.

https://librewolf.net/docs/faq/#what-are-the-most-common-downsides-of-rfp-resist-fingerprinting says modifier keys are disabled. When I disable privacy.resistFingerprinting, modifiers work.

I attempted the below setting, but it doesn't work.

defaultPref("privacy.fingerprintingProtection", true);
defaultPref(
 "privacy.fingerprintingProtection.overrides",
 "+AllTargets,-KeyboardEvents"
);

For now, I'm running with the below until I can find a better solution.

~> cat .librewolf/librewolf.overrides.cfg
defaultPref("privacy.resistFingerprinting", false);

To enable shift and control keys I have added -WidgetEvents to the privacy.fingerprintingProtection.overrides

defaultPref("privacy.fingerprintingProtection", true);
defaultPref(
 "privacy.fingerprintingProtection.overrides",
 "+AllTargets,-WidgetEvents"
);