I'm setting up for remote debugging a webpage in Firefox on Android. adb recognizes my device, but my device won't display in Firefix's about:debugging#/setup page. Instead, it says "USB disabled" and gives me a button called "Enable USB Devices" that is supposed to "download and add the required Android USB debugging components to Firefox". Pressing that button displays "Updating..." for a second, then reverts back to it's former state; subsequent presses flicker between states too fast to see.
I admit to opening a bug report, but I don't even know if it's a bug since the button isn't documented in the debugging guide and the only mention of it on the web I can find is this question that no one even commented on.
Does this button do anything for anyone? Am I supposed to be running a specific version of Firefox or OS or something? I'm running the latest version of FF (106.0.5).
I figured out the problem using the Firefox console. The browser was making a request to the wrong URL, and getting a 404. I.e. this is a Firefox bug.
Spot the difference:
Broken : https://ftp.mozilla.org/pub/mozilla.org/labs/devtools/adb-extension/linux64/adb-extension-latest-linux64.xpi
Correct: https://ftp.mozilla.org/pub/labs/devtools/adb-extension/linux64/adb-extension-latest-linux64.xpi
I filed a bug report here.