I have Firefox version 51.0.1 and Firebug version 2.0.18 (though it just says "deactivated"). I have been installing the latest FirePath over and over, but I don't see it appearing when I click the Firebug icon.
They both are enabled in my extensions. I saw it a few days ago, but I had to reinstall Firefox yesterday for some reason, and both Firebug and FirePath were gone, and it is now giving me problems. What should I do?
Firebug development is discontinued and it does not work anymore once multi-process Firefox is enabled and clicking the Firebug button opens the Firefox DevTools instead. You can read more about this in the related Mozilla Hacks blog post.
This also affects FirePath, because it doesn't work with the Firefox DevTools.
They don't have an exact equivalent to it, but allow you to test XPaths via the $x() command within the command line. Furthermore, there are requests for copying the XPath of an element and for searching for XPaths within the Inspector.
There's also a way to get Firebug and FirePath work again by disabling multi-process Firefox. Though that is only a temporary solution, because multiple processes will be enforced in an upcoming version of Firefox.
I just deleted my Firebug and FirePath, downloaded Firebug version 2.0.18, and installed FirePath again.
It is working fine for me.
The latest Firefox has used DevTool instead of Firebug.
You can reactivate Firebug to rework as the above mentioned links.
In about:config set the preferences browser.tabs.remote.autostart, browser.tabs.remote.autostart.1, and browser.tabs.remote.autostart.2 to false.
I am just sharing what I found while on Google. Instead of downgrading anything, you can use ChroPath. It is available for both - Chrome as well as Firefox.
Chrome plugin: ChroPath
Firefox plugin: ChroPath
Here is the video: ChroPath for Firefox
Actual site: SelectorsHub
