component/firefox: version up firefox 52.9.0esr

Current ESR version

Keep version 51 for now

component/firefox/buildout.cfg

@@ -48,20 +48,30 @@ script =
   ))
     os.fchmod(f.fileno(), 0o755)
 
+[firefox-wrapper-52]
+<= firefox-wrapper
+wrapper-name = firefox-52
+part = ${firefox-52:location}
+
 [firefox-wrapper-51]
 <= firefox-wrapper
 wrapper-name = firefox-51
 part = ${firefox-51:location}
 
 
-
 [firefox]
 # The default installed firefox version when installing firefox-wrapper.
 # Note that users must install ${firefox-wrapper:} to have a usable firefox
 # installed in ${buildout:bin-directory}.
 # Installing ${firefox:} is not enough, because wrapper setting $LD_LIBRARY_PATH
 # would not be created.
-<= firefox-51
+<= firefox-52
+
+[firefox-52]
+<= firefox-download
+version = 52.9.0esr
+i686-md5sum = 9aa18888b7812670208490609d75c9bc
+x86_64-md5sum = 9336d70f45070c743d08e5473b783a7a
 
 [firefox-51]
 <= firefox-download