BFilter is a filtering web proxy. It was originally intended for removing banner ads only, but since then its capabilities have been greatly extended. It detects web ads heuristically (like modern anti-virus software) as opposed to using blacklists, which results in much more consistent behavior.Note: Configuring a portable browser to use BFilter works flawlessly as long as BFilter is running, though it is not recommended to do this with a browser on the host computer. Configuration instructions can be found here. Download the installer and extract using Universal Extractor to a folder of your choice. Delete $COMMONFILES, $PLUGINSDIR and [NISI].nsi. Rename $_OUTDIR to conf, then move resources and doc from conf to the main folder where bfilter.exe is located. Launch the program by double-clicking on bfilter.exe.