How to disable content_script.js in firefox..?

Question

I haven't installed any plugin so far in my firefox and neither used any extra js script till yet but i don't from where this content_script.js has been enabled and printing unnecessary messages in console like this :

 content script runtime.onMessage: update_shortcuts
content_script.js (line 91)
<System>

2 content script runtime.onMessage: tabupdate
content_script.js (line 91)
<System>

When i tried to look at the path of this script, it shows its a part of firefox any plugin :

resource://gre/modules/ExtensionContent.jsm -> moz-extension://22d1d103-e4d1-431c-bc5e-e2fe1cd8d902/javascripts/content_script.js

Can anyone please tell me what the hell is this script doing and HOW CAN I DISABLE THIS..??

I am using these extensions in FireFox :

Any help will be appreciated..!!

Answer 1

The console messages are being caused by the Awesome Screenshot addon. Disable it and they'll stop.

If you're on Windows I recommend ShareX as a very good open-source alternative to Awesome Screenshot.

Answer 2

Most likely it's an issue of any firefox addons that you are using. Try using firefox without loading any addons and see if this issue persists.

DO this to load without addons

Launch Mozilla Firefox, click the "Firefox" button, click the small arrowhead next to "Help" and click "Restart with Add-Ons Disabled" in the submenu. Click the "Restart" button to confirm the action and restart Mozilla Firefox. Click the "Start in Safe Mode" button to start Mozilla Firefox without the add-ons.