Google and other search pages Lock Up Browser (Firefox)

ESETSmartInstaller@High as CAB hook log:
OnlineScanner.ocx - registred OK
# version=7
# iexplore.exe=8.00.6001.18702 (longhorn_ie8_rtm(wmbla).090308-0339)
# OnlineScanner.ocx=1.0.0.6419
# api_version=3.0.2
# EOSSerial=add6e57fba529d46bae00c6f32c4b007
# end=finished
# remove_checked=false
# archives_checked=true
# unwanted_checked=true
# unsafe_checked=true
# antistealth_checked=true
# utc_time=2011-01-08 03:25:24
# local_time=2011-01-07 07:25:24 (-0800, Pacific Standard Time)
# country="United States"
# lang=1033
# osver=5.1.2600 NT Service Pack 3
# compatibility_mode=512 16777215 100 0 34846841 34846841 0 0
# compatibility_mode=5121 16777173 100 75 0 23593479 0 0
# compatibility_mode=8192 67108863 100 0 0 0 0 0
# scanned=198567
# found=1
# cleaned=0
# scan_time=6965
C:\Documents and Settings\Karin Schulze\Local Settings\Temp\plugtmp-1\plugin-f_anq.pdf PDF/Exploit.Pidief.PBK.Gen trojan (unable to clean) 00000000000000000000000000000000 I

This above was found by ESET.

Should I also have ESET remove found threat?

Thanks,
Derek

Its not a threat but yes,you can remove it or do a search and manually delete it.

should I just leave it then?

Yes its fine to leave.Its only a pdf plugin.

then hopefully I am fine for now. Thank you so much for your help. If I have any more problems I will check back in.

Have a great weekend.

Derek