Not so much a question but an FYI...
I am on 3 machines: Mac laptop and iMac running Snow Leopard, 10.6.8 and an older G5 desktop running Leopard. I have the the most recent browsers for the machines and OSs. I recently changed my master password on one of my machines from the 1Password application, v 3.8.20 (build 31499).
On every machine and every browser, I run all 3: Safari, Chrome and Firefox, when I am ready to use the 1Password extension it will not work, telling me the master password has been changed. I use Dropbox to hold my 1Password master file and my assumption or vague memory from past was that this information would be transmitted to each of the machines and their browser extensions.
What I have been forced to do is reinstall the extension, the moment I complete that process the extension works perfectly. So the information is being transmitted but just not to a previously installed extension.
If you have time to explain this, great, if not then let this be a guide to someone else having the same issue and to let them know there is a relatively easy fix.
By the way, thanks for the tip on reinstalling the extension via drag & drop on Chrome, what's up with those guys? I hope you are aware that when you go through their 'store' and search for 1Password they direct you to 4 other products, one with a name close enough to be a trademark issue.