"Mozilla changed my original bug on reversing this, to "On Linux, backspace should do NOTHING", which was really irritating seeing as that is not what I wanted at all."
Agreed. This is a really irritating non-solution. If they're concerned about data loss, they should implement a solution that fixes *ALL* such data loss issues. Many pages use javascript to pop up a "Are you sure you want to navigate away from this page?" dialog. This should be just be standard on any page with user-changeable elements. Then the backspace/data loss "issue" would be moot.
"Mozilla changed my original bug on reversing this, to "On Linux, backspace should do NOTHING", which was really irritating seeing as that is not what I wanted at all."
Agreed. This is a really irritating non-solution. If they're concerned about data loss, they should implement a solution that fixes *ALL* such data loss issues. Many pages use javascript to pop up a "Are you sure you want to navigate away from this page?" dialog. This should be just be standard on any page with user-changeable elements. Then the backspace/data loss "issue" would be moot.