In my current version of Firefox (46.0.1), as a beginner using the inspector tool, I have encountered an issue where moving my mouse around results in a blue box appearing around elements. This movement impedes my ability to navigate through lower information boxes with my mouse. I recall finding a solution for this problem previously, but am unable to locate it now through my searches on Google. I distinctly remember that it was not resolved by setting a breakpoint, but rather involved pressing a specific key.
Your Answer: To solve this issue, simply click on the box icon located at the upper left margin; it will turn blue. You can then freely move your mouse to desired locations and left-click. The blue box will disappear, allowing you to continue interacting with the text below without any interference.
You can find more detailed information regarding this solution at: https://developer.mozilla.org/en-US/docs/Tools/Page_Inspector/How_to/Select_an_element
Sincerely, Robert