This solution is fine from a testing point of view but for the user who is just trying to fix Firefox this will complicate an already difficult process. There is a plan to remove the Profile Manager UI ( Bug 214675) and add an external Profile Manager application ( Bug 539524).Providing this option upon reinstallation and, in addition, offering this after consecutive start-up crashes and on the Troubleshooting Information page will make this feature both intuitive and discoverable. Many users try to reinstall Firefox to solve these issues but reinstallation doesn't do anything to the profile folder. See these two articles ( 1, 2) for complete steps. A user will almost always want to also migrate their data to the new profile which is another difficult task. The problem is, creating a new profile (which is an incredibly difficult task) is not enough. There are a number of serious Firefox issues (not starting, crashing, unexpected behavior, lost toolbars and more) that can be solved by creating a new profile. This feature falls primarily in the Experience category (from the "Discover, Experience, and Connect" vision statement.) The Reset Firefox feature will provide a way for users to automatically fix Firefox by creating a new profile and migrating their data (bookmarks, history, passwords, etc). The other use-cases are still valid though.
Since OS X and Linux don't have installers, we don't have a way to trigger this process for them upon re-installation.UI to initiate from about:support landed in 13. Migrator with stub import landed (no add-ons) in 12. Please use "Edit with form" above to edit this page.