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Firefox not responding on startup even after reinstalling on OSX 10.9.5

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When I open Firefox I get a blank window that doesn't fully load. I can't interact with Firefox at all. I deleted Firefox from my application folder and downloaded a new version but it's still hanging at start up.

I did update both Adobe Flash and Security Update 2015-001 for OSX before this issue started happening and that may play a factor.

When I open Firefox I get a blank window that doesn't fully load. I can't interact with Firefox at all. I deleted Firefox from my application folder and downloaded a new version but it's still hanging at start up. I did update both Adobe Flash and Security Update 2015-001 for OSX before this issue started happening and that may play a factor.

All Replies (2)

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You can check if you can start Firefox in Safe Mode by holding down the Options key.

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Unfortunately that didn't work. It did get more of the browser to load (in fact, it pulled up my homepage). However, I still can't interact with the application at all and get the spinning color wheel when I try to click anywhere in the window.