Yes, that too. They can better standardize their headers, and/or they can add some noise to the signal to throw off the fingerprinting, which can be done without any kind of concerted effort.
Just mentioning this for completeness: there is also the IP address, but that has other solutions, and isn't a web browser's responsibility.
As President of the United States, would you make any significant changes to what drugs you take and how often you take them? If so, could you give us a general sense of what those changes might be?
He will be using the JFK cocktail.
Toolbars are just the tip of the iceberg. All major browsers are malware because they don't isolate cookie storage (or all storage, really) between origin domains, breaking the same-origin policy. Third-party cookies then become data trojans. Intent is important here. It isn't just a vulnerability, but a design flaw continued by the fact that all major browser development is funded by advertising companies.
See for yourself how Mozilla refuses to fix a security vulnerability that is enabling billions to be made from stolen user data: Bugzilla bug 565965
The debate is framed by the US agencies behind the surveillance, as well as the US government, not by some guy on the internet.
The debate was framed by our forefathers.
There are always ways to shave time off of reactions, no matter what approach you take.
It is not difficult to formally solve this problem with constraints at the exchange. If timing is the issue, then just randomize it. Just delay the evaluation of bids for the timing-sensitive period, and replay the bids with scrambled timing at the end of the period. This would effectively distribute the advantages and disadvantages in timing across the bidders.
The issue is not technical. The issue is political. No one wants to do any of the number of ways to fix this, and there are many ways to fix this that would work. I just came up with one off the top of my head, which certainly means that there are dozens more, and probably at least a dozen better ones.
"Conversion, fastidious Goddess, loves blood better than brick, and feasts most subtly on the human will." -- Virginia Woolf, "Mrs. Dalloway"