Here is the reported firebombing of Starbucks in Whitechapel ( https://publish.indymedia.org.uk/en/2009/01/418334.html). The shop seems to have been attacked because Starbucks is 'zionist owned' and because 'a precentage of its profits go directly to the Israeli government'.

Myth 1: Starbucks is 'owned' by a Jew or Zionist
Reality: Starbuck's highest employee, CEO Schultz, is a Jew and reportedly pro-Israel (check company website)

Myth 2: Starbucks (and Tesco, McDonalds, etc) pay parts of their profits to Israel
Reality: This is a hoax invented by the anti-Zionist Andew Winkler. Winkler wrote a spoof letter he attributed to Schultz in 2006, which was always intended as a parody ( http://www.snopes.com/politics/israel/schultz.asp)

Myth 3: the anti-war movement is anti-semitic
Reality: It clearly is not, but we need to DISTANCE ourselves very clearly from anti-Semitic attacks. 'Kill Jews' graffiti appeared around Whitechapel on the night of the Starbucks attacks according to the East London Advertiser (on the Tesco that was also damaged in an attack and on a playground)

According to the Times, the Jewish communities in London and Manchester are most trageted by anti-Semitic protests in the past weeks, especially graffiti and verbal abuse. The Times (and other newspapers) has written that there also was an arson attack on Brondesbury Park Synagogue in London after the anti-war march in London two Saturdays ago.