Hi

Mobile devices are not always as powerful as a desktop or laptop computer and this difference is more pronounced with older Android devices.

It may be the case that the device does not have sufficient capability to handle scrolling the screen and loading the small image files at the same time.

Thanks for answering. However, im pretty sure that it is Android version compatbility. I have 4.2.2 and its freezes. On other weak device its 4.4 and works well. Also, images looks overscaled. Where to report bugs?

Hi

We do not make Firefox available for Android 4.2 and you may struggle to make it work on Android 4.4. It may help if you free up storage capacity and remove other apps that you do not need, but please appreciate that you are using a much older device.