[StavrosK]

That's what the Perspectives plugin for Firefox (http://perspectives-project.org/) does, but, as with all these things, it probably won't see wide adoption until it's implemented in a browser by default (and it's good enough that it will have very few false positives or negatives).

[andrewcooke]

just to add that perspectives also has a chrome alpha - https://chrome.google.com/webstore/detail/lnppfgdnjafeikakad...

[kinda frustrating that the solution to many of these issues is sitting here at the bottom of the thread!]

[StavrosK]

Oh, thanks, I looked for that on the site but didn't spot it.