How can I share from my image gallery on Facebook? Do I have to install the Facebook application on CyanogenMod 7 RC3 to share on Facebook from my image gallery?
Yeah, you need to install the Facebook application, since it adds the option on the drop menu. Then follow this instructions after you installed it correctly:


Tap and hold an image
The screen will change to be possible to select multiple images
Select the images you want to post on Facebook
Hit Share on the bar
Then Facebook