The Sun also loses mass due to the solar wind.
Good point. I just looked it up; the sun loses 4 million tons per second due to fusion, and 1.5 million tons per second due to the solar wind. At that rate, in the next 5 billion years it will have lost only about 0.034% of its current mass.
Mind you, it will be turning into a red giant around that time, so we'll have other worries.