Answering the question, you go to your gif file, select it and press your space bar on your keyboard, to open a window that shows the animation of your gif.
I had installed the QuickLook plugging, thinking that will be better and easier to view, maybe in the same window of finder, but i was wrong. Instead of this, it only crashed the original configuration, so i wasted the rest of day, searching a fix solution.
How became after install the plugin:
i installed this and now when i hit space bar, i only view a black window instead of my animated gif (before, it was possible)!!! i want to fix it!!!! NOW! this shit doesn't have itself unistaller!
i thought that this pluging were allow me to preview gifs in the same window of finder (like the windows 7 does)!!!
After a long day searching for a solution, i find this tip:
I found a good soul that shared the solution on a forum website, here is what his said:
"To UNINSTALL this plugin, go to the /library folder and open the QuickLook folder. This is NOT the MacOS Harddisk/library or System/library folder. It’s a HIDDEN folder in your own directory. To access it, click the GO menu in the Finder menu (top bar) and press and hold the Option key. Select the “Library” directory that appears there. Inside the Quicklook folder, you’ll see the actual AnimatedGIF_QL.qlgenerator plugin file. DELETE it and you’ll immediately have your native GIF support working again."
And its working!!! :D yey!
hope this help someone!