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To change how Firefox checks spelling and enable spell-checking on one-line and multi-line text fields, use about:config to set layout.spellcheckDefault to 2.
To change how Firefox checks spelling and enable spell-checking on one-line and multi-line text fields, use about:config to set layout.spellcheckDefault to 2.
To change how Firefox checks spelling and enable spell-checking on one-line and multi-line text fields, use about:config to set layout.spellcheckDefault to 2.
To change how Firefox checks spelling and enable spell-checking on one-line and multi-line text fields, use about:config to set layout.spellcheckDefault to 2.