Update 6 October 2011: The send data to Mozilla question will be turned off by default in the next release (2.8.0) of the selenium-webdriver gem which watir-webdriver uses.
I’ve been running Watir-WebDriver tests against Firefox 7, which works superbly. The biggest change is Firefox 7 now supports performance metrics, so this means you can use the watir-webdriver-peformance gem: yay! It also means my EtsyWatirWebDriver project now collects page metrics using Firefox.
The only slight annoyance is the presence of the ‘send data to Mozilla?’ dialog bar. Never fear, it’s easily dismissed.
require 'watir-webdriver' profile = Selenium::WebDriver::Firefox::Profile.new profile['toolkit.telemetry.prompted'] = true b = Watir::Browser.new :firefox, :profile => profile