Hi I am sorry to hear that Firefox for Android is crashing. If you remove Firefox for Android and reinstall it, you will lose saved bookmarks if they are not synced to another copy of Firefox. I hope that we can help resolve this for you. Before following the steps below, make sure that you have updated both your Android device and Firefox for Android to the latest versions available. As a first step, close down many of the tabs that you have open to as few as possible. Does this help reduce the incidence of a crash? If this does not resolve the issue, open the Android Settings app, select '''Apps''' then find Firefox in the list. In the section titled '''Storage and Cache''', select the option to clear the cache (do not clear data!). Does this help? Following that, our developers will need to look into this in more detail with some logs from inside your copy of Firefox for Android. Type ''about:crashes'' in the address bar which will display information about recent crashes. If you select the most recent '''Socorro''' link, a crash report will open in a new tab. If you could copy and paste the address of the page that opens into a reply to this thread, we will be able to look into this further for you. I hope that this helps.