From the same FDA website you are selectively quoting from
http://www.fda.gov/Cber/vaccine/thimerosal.htm#tox
In 2004, the IOM's Immunization Safety Review Committee issued its final report, examining the hypothesis that vaccines, specifically the MMR vaccines and thimerosal containing vaccines, are causally associated with autism. In this report, the committee incorporated new epidemiological evidence from the U.S., Denmark, Sweden, and the United Kingdom, and studies of biologic mechanisms related to vaccines and autism since its report in 2001. The committee concluded that this body of evidence favors rejection of a causal relationship between thimerosal-containing vaccines and autism, and that hypotheses generated to date concerning a biological mechanism for such causality are theoretical only. Further, the committee stated that the benefits of vaccination are proven and the hypothesis of susceptible populations is presently speculative, and that widespread rejection of vaccines would lead to increases in incidences of serious infectious diseases like measles, whooping cough and Hib bacterial meningitis.
According to the table at the bottom of this page MMR Vaccine in US never contained Thimerosal.
At the bottom of the same page are links to the U.S. Enviromental Protection Agency website warning of the dangers of mercury posioning from fish (both natural and pollution related).
http://www.epa.gov/waterscience/fishadvice/advice.html
Specifically
Do not eat Shark, Swordfish, King Mackerel, or Tilefish because they contain high levels of mercury.
But I haven't noticed you mentioning these as a source of mercury poisoning. Could it be because you don't have faintest idea what you are talking about and will desperately accept the faintest snippet of information that confirms your paranoid delusions? Surely not.