hello, can you try to replicate this behaviour when you launch firefox in safe mode once? if not, maybe an addon is interfering here...

Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems

I notice in your System Details list that the plugin.disable_full_page_plugin_for_types pref looks a bit weird with a lot of empty entries (,,,,,,,), so you want want to check this out and correct the value.

how do i do this cor-el? i went to my FF ad-ons page but couldn't find such a entry. thanks!

Type about:config in the location (address) bar and press the Enter key to open the about:config page like you open a website by typing the URL in the location bar.

• If you see a warning message then you can confirm that you want to access the about:config page.

• use the Search bar at the top of the about:config page to locate preferences more easily
• preferences that have been modified and do not have the default value show as bold (user set)
• preferences that are user set (bold) can be reset to the default value via the right-click context menu
• preferences can be changed via the right-click context menu: Modify (String or Integer) or Toggle (Boolean) or by double-clicking the line with the pref

See also:

• http://kb.mozillazine.org/about:config

Okay, thanks!

i just followed your instructs and i reset that value to default.

Hopefully that worked-- if not i'll return here to ask what else to try .  :)