Firebug and Firepath deactivated in Firefox 50+?

My Firebug and Firepath were working fine, but they just started acting strange. When I click on objects on webpage, and do Inspect Element, it just does nothing. I didn’t update or do anything on firefox. Here is the solution:

The property which I used to get back  the Firepath and Firefinder under firebug is:

browser.tabs.remote.autostart.2 = false

Steps:

1. Open firefox

2. Type about:config in the  explorer

3. Click on the I understand button

4. Now in the search box enter the above property browser.tabs.remote.autostart.2

5. Set the value as false (Use need to click the property to toggle the values)

6. Close the firefox and open again

7. Launch firebug …Now you should see your fire path and firefinder back