Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
. But if you're just trying to use the zoom button, it should work in the browser. It's a button in the lower right corner.If you're trying to 'pinch-to-zoom' our phones don't support it. But if you're just trying to use the zoom button, it should work in the browser. It's a button in the lower right corner.
Have you tried double tapping the screen?

Which browser are you using? Are you using the Browser that came with the phone or did you download Dolphin Browser or Skyfire?
I don't think it will work if you are using the app. Try going to facebook using the browser.Im using the browser that came with phone. It also dosn't work when using facebook app. Maybe I'l download Dolphin and try from there.
Just tried that using Dolphin and the only difference is text is a little bit bigger when going to full screen. Still no zoom option .I don't think it will work if you are using the app. Try going to facebook using the browser.
Dolphin mini or hd? With dolphin hd, there is an add on you download to switch between mobile and desktop view. (there will be a "button" on the right side off screen) Maybe the desktop mode will let you zoom in.Just tried that using Dolphin and the only difference is text is a little bit bigger when going to full screen. Still no zoom option .