How can I get the CSS Selector in Chrome?
Solution 1:
If Chrome Dev tools if you select the element in the source pane and right click, then you will see the "Copy CSS Path" option.
In newer versions of Chrome, this is (right-click) > Copy > Copy selector.
You can also get the XPath with (right-click) > Copy > Copy XPath
Solution 2:
Although not an extension, I did find a bookmarklet called Selector Gadget that does exactly what I was looking for.