Tak uz asi visi jen v tom souboru Extensions.rdf ktery je imho list extensionu ktere mas. I kdyz uz to fyzicky asi nainstalovane nemas.

Tam najdes neco jako
Kód:
  <RDF&#58;Description RDF&#58;about="urn&#58;mozilla&#58;extension&#58;&#123;805225dd-23f6-4b0e-8d78-7001c872d88c&#125;"
                   em&#58;version="0.8"
                   em&#58;name="Flash Click to View"
                   em&#58;description="Replaces Flash objects with a button that you can click on to view them."
                   em&#58;creator="Lorenzo Colitti"
                   em&#58;homepageURL="http&#58;//flashblock.mozdev.org/"
                   em&#58;iconURL="chrome&#58;//flashblock/content/flashblock.png">
    <em&#58;contributor>Ted Mielczarek</em&#58;contributor>
    <em&#58;contributor>Ted Drake</em&#58;contributor>
    <em&#58;contributor>Jesse Ruderman</em&#58;contributor>
    <em&#58;targetApplication RDF&#58;resource="rdf&#58;#$oQdCX1"/>
  </RDF&#58;Description>
Tam vidis nazev(tady zrovna Flash Click to View) tak ty najdes ten svuj a cely ten blok smazes.

Pro jistotu si to pred upravou nekam zalohuj.