Comment 1 for bug 1617609

It’s very likely that the phone ran out of memory when you switched to that other app, so it killed the renderer process for the launchpad page, and when you switched back to browser it had to reload the page entirely.

If launchpad used local storage to save whatever information you input on a bug page regularly, that would mitigate the issue, but unfortunately there’s nothing we can do to prevent this from happening when the device runs out of memory. Did you have many apps open when that happened?