Unable to find browser binary!

[MFAshby]

Using firefox version 107.0.1 (64-bit) on a Pinebook Pro (linux aarch64), running manjaro linux, I installed the extension and firefox-profile-switcher-connector from arch user repository. However, when I select a profile, nothing happens. I expected a new window launched with the selected profile.

In the extension debugger, I can see this error in the console tab:

Native error! 
Object { success: false, error: "Unable to find browser binary!", debug_msg: "BinaryNotFound" }
[native.js:123:25](moz-extension://1b1ad04a-2a83-4baf-8089-ffefef780dc7/js/native.js)
    reqId moz-extension://1b1ad04a-2a83-4baf-8089-ffefef780dc7/js/native.js:123
    initNativePort moz-extension://1b1ad04a-2a83-4baf-8089-ffefef780dc7/js/native.js:37

[MFAshby]

oh it's possibly a duplicate of null-dev/firefox-profile-switcher-connector#14