added bg-BG translation. Thanks to dstoykov@uni-ruse.bg

chrome/locale/bg-BG/contents.rdf

+<?xml version="1.0"?>
+<RDF:RDF xmlns:RDF="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+         xmlns:chrome="http://www.mozilla.org/rdf/chrome#">
+
+  <!-- list all the packages being supplied by this jar -->
+  <RDF:Seq about="urn:mozilla:locale:root">
+    <RDF:li resource="urn:mozilla:locale:bg-BG"/>
+  </RDF:Seq>
+
+  <!-- locale information -->
+  <RDF:Description about="urn:mozilla:locale:bg-BG">
+
+    <chrome:packages>
+      <RDF:Seq about="urn:mozilla:locale:bg-BG:packages">
+        <RDF:li resource="urn:mozilla:locale:bg-BG:displayquota"/>
+      </RDF:Seq>
+    </chrome:packages>
+
+  </RDF:Description>
+
+</RDF:RDF>
+

chrome/locale/bg-BG/displayquota.dtd

+<!ENTITY displayquota.options.title "  DisplayQuota">
+<!ENTITY displayquota.options.label "  DisplayQuota">
+<!ENTITY displayquota.options.general "">
+<!ENTITY displayquota.options.appearance "">
+<!ENTITY displayquota.options.warnfrom "    ">
+<!ENTITY displayquota.options.whenusenotif " ">
+<!ENTITY displayquota.options.whenusenotif.always "">
+<!ENTITY displayquota.options.whenusenotif.threshold " ">
+<!ENTITY displayquota.options.whenusenotif.never "">
+<!ENTITY displayquota.options.smaller "-">
+<!ENTITY displayquota.options.larger "-">
+<!ENTITY displayquota.options.ProgressBarSize "  :">
+<!ENTITY displayquota.menu.apropos "">
+<!ENTITY displayquota.menu.options "">
+<!ENTITY displayquota.statusbar.quota "">
+<!ENTITY displayquota.alert.dontbugme "     30 ">
+<!ENTITY displayquota.alert.title "Quota Alert">

chrome/locale/bg-BG/displayquota.properties

+extensions.{c1ac4523-76c2-9995-adbd-d93bf5141bea}.description=                  .
+kilobyte=
+megabyte=
+gigabyte=
+of=
+usage=
+warnalert1=  
+warnalert2=  .
+warnalert3=      .
+overalert=  100%   .
+overalert2=        .
+noquota= 
+notimap=-IMAP 
+quotaalert=  
+quotawarning=  
+quotainfo=