Logout and Login to CC does not fix the the Lightroom CC crash on launch issue for me.

Question

Any other fixes? Solutions?
Adobe?
Trial version of Photoshop CC, downloaded after LRCC, works with no issues.
Please advise.
27 inch iMac
Mac OS X 10.10.3

Answer 1

I assume at some point you tested in Firefox's Safe Mode to see whether the problem is equally severe. If not, you can restart Firefox in Safe Mode using either:
* "3-bar" menu button > "?" button > Restart with Add-ons Disabled
* (menu bar) Help > Restart with Add-ons Disabled
Not all add-ons are disabled: Flash and other plugins still run
After Firefox shuts down, a small dialog should appear. Click "Start in Safe Mode" (''not'' Reset).
Any difference?
'''Flash troubleshooting'''
As the most commonly used plugin and a known cause of hangs on some systems, you may want to try disabling the protected mode feature of the plugin. This involves creating or editing a settings file. The following pages/posts provide different ways to do that:
* Adobe support article under the heading "Last Resort": [http://forums.adobe.com/message/4468493#TemporaryWorkaround Adobe Forums: How do I troubleshoot Flash Player's protected mode for Firefox?]
* Manual steps: https://support.mozilla.org/questions/968190?page=5#answer-509209
* Batch file to automate the manual steps: https://support.mozilla.org/questions/982093#answer-518078
Flash needs to completely unload from memory (exiting and starting Firefox up again might help) before this takes effect.
'''Regarding 64-bit'''
There is not a 64-bit "release" version of Firefox for Windows. There is a 64-bit bleeding edge test version ("Nightly") that I definitely do not recommend for normal daily use.
On the plus side, 64-bit programs can use much more memory. On the minus side, many plugins are not available for 64-bit builds of Firefox.
Some other developers have taken parts of the Firefox code base and created their own 64-bit builds, Waterfox and Pale Moon. I haven't tried those myself.