This is backwards compatible ALTER TABLE moz_inputhistory RENAME TO moz_inputhistory_old CREATE TABLE moz_inputhistory ( place_id INTEGER NOT NULL, input TEXT NOT NULL, use_count INTEGER, PRIMARY KEY (place_id, input) ) WITHOUT ROWID INSERT INTO moz_inputhistory SELECT place_id, input, use_count from moz_inputhistory_old DROP TABLE moz_inputhistory_old

Per policy at https://wiki.mozilla.org/Bug_Triage/Projects/Bug_Handling/Bug_Husbandry#Inactive_Bugs. If this bug is not an enhancement request or a bug not present in a supported release of Firefox, then it may be reopened.