-> click Firefox button and click Exit

Start Firefox in Safe Mode by Holding down the Option key while starting your Mozilla application.

As an alternate method, go to Utilities (in the Applications folder) and open Terminal, then run:

    /Applications/Firefox.app/Contents/MacOS/firefox-bin -safe-mode 

Firefox will open up with just basic Firefox. Now do this:

-> Update ALL your Firefox Plug-ins https://www.mozilla.com/en-US/plugincheck/

-> Right-click on Tab Strip and unselect All Unwanted/Incompatible Toolbars

-> click Firefox button, go to History Menu and click Clear Recent History... -> Time range to clear: select "EVERYTHING" -> click Details (small arrow) button -> place Checkmarks on Cookies, Cache -> click Clear Now

-> click Firefox button, click Options -> go to General section -> in Startup section click Reset to Default button

-> go to Content section -> place Checkmarks on:

1) Block Pop-up windows 2) Load images automatically 3) Enable JavaScript

-> go to Privacy section -> History section -> Firefox will: select "Remember History"

-> go to Security section -> place Checkmarks on:

1) Warn me when sites try to install add-ons 2) Block reported attack sites 3) Block reported web forgeries

-> go to Advanced section -> Network -> Offline Storage (Cache): click Clear Now button

-> Click OK on Options window

-> click the Firefox button, click Add-ons -> Extensions section -> REMOVE All Unwanted/Suspicious/Incompatible Extensions (Add-ons)

-> click the Firefox button, click Add-ons -> Appearance section -> REMOVE All Unwanted/Suspicious/Incompatible Themes (Persona)

-> Restart Firefox

You can enable your Known & Trustworthy Add-ons and Themes later. Check and tell if its working.

I work on a Mac so locating some buttons is slightly different. I do think I followed all your steps, yet I still have hard drop shadows on my photos. ;-(

are you using any Photos related add-on ?? you might need to configure it

No Photo add-ons. All plug-ins are disabled.

and what about any Photos Extensions (add-ons) ???

No Extensions.

That is a bug. See this post

https://support.mozilla.com/en-US/questions/841539

That is unfortunately a bug (Bug 662898) that slipped into Firefox 5 and that will be fixed in Firefox 6, due to be released in August.

• http://forums.mozillazine.org/viewtopic.php?f=25&t=2240429
• /questions/843162

At least I now know I'm not going crazy! Thanks for the info. Any bug sprays available until Firefox 6 comes out?

You're welcome