Hi, if you have suggestions for future releases please go to the 3 Bar Menu --> Help --> Submit Feedback Or email to the same place : https://qsurvey.mozilla.com/s3/FirefoxInput/ or https://discourse.mozilla.org/c/add-ons Volunteer Support can not make changes to Firefox in the way your asking. As for why is is to keep people out from being in a place that can wreck havoc and make recovery impossible. In future ask a question and then there will be no need to blindly go about:config Glad you fixed what you wanted. Also yes, all changes to about:config should be documented for future reference or repair. Please let us know if this solved your issue or if need further assistance.

Now that you have made changes : backup : *https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles *https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer