I am a jolly soul.... I worry about that which is under my nose, or feet, or in my underwear.
If you are creating a custom browser would be nice to throw in some profile optimisations...even with recent firefox it can be trimmed down...cache sizes, vacuum databases, and others.... so a bonus bunny of your package would be to keep it lighter and sweeter for the save file and with less crud coming through off the net.....might reduce those 'my 1GB save file is nearly full' posts.
I see no harm in throwing in things like flashbock and such ...they are small, useful and can always be removed if desired... a useragent spoof is useful too. ..And why not a tiny you tube downloader just to p**s off google
![Very Happy :D](./images/smilies/icon_biggrin.gif)
mike