Since it seems to come up so often, I would love to hear precisely what the difference is.
To me it sounds like tolerance is permissible freedom. It is freedom within certain limits. It is done so as to "willingly recognize and respect the beliefs and practices of others" even if they may be different than yours. Since it is permissible, it is the acceptance of a thought, action, or behavior in accordance with some rule or standard.Defintions
Freedom: the condition of being free; the power to act or speak or think without externally imposed restraints
Tolerance: permissiveness; a disposition to allow freedom of choice and behavior; willingness to recognize and respect the beliefs or practices of others; allowance; a permissible difference; allowing some freedom to move within limits
By contrast, intolerance would be an unwillingness to recognize or respect the beliefs and practices of others, and thus there would be no acceptance of an alternative thought, action, or behavior.
Once intolerance seeks to impose restraints on others, it is inherently in conflict with freedom. Whereas tolerance is an action where one protects their own freedom by outlining a rule or standard that must not be violated, intolerance is only an imposition on the freedom of others.
Therefore, I argue for one's actions not to be deciphered as "intolerant" of others they must clearly demonstrate how another's actions, thoughts, or behaviors violate a rule or standard they have established to protect their own freedom.