I would like to note I have already searched the forums and I have found the new menu location (tools->web developer->page source) as well as tried using the ctrl(command on mac) + U shortcut. Nothing happens when I click on "view source" - no page is opened and the source is not displayed anywhere. I tried modifying the settings to use TextEdit on Mac by default, but still nothing. I haven't tried disabling any plugins yet, but wanted to pose this question none the less. I will attempt to disable plugins/add-ons and see if that's causing the problem. Thanks for any help - as a web developer, not having access to the source code for the page is a huge roadblock for me, and I would rather not use another browser since Firefox is by far my favorite browser to develop and test in. '''Edit:''' I attempted to restart Firefox in safe-mode with all add-ons disabled and I still was not able to view the page source.