Created attachment 8657717 [details] screencaps User Agent: Mozilla/5.0 (Windows NT 5.1; rv:40.0) Gecko/20100101 Firefox/40.0 Build ID: 20150826023504 Steps to reproduce: Went to Amazon.com, searched for "fluorescent sweatshirt". Actual results: Seemingly the entire page reloaded (complete with loading indicator in tab) from the Amazon.com home page to the results page, with the title displayed in the tab changed from "Amazon.com: Online Shopping [etc]" to "Amazon.com: fluorescent sweatshirt". I realized from the results that a better query for what I wanted would be "high visibility sweatshirt", so I typed that into the in-page search box and hit enter. There was no loading indicator in the tab, and seemingly just the search results area reloaded with new results--but the title in the tab remained "Amazon.com: fluorescent sweatshirt". Expected results: I checked the source, and the title of the page had been updated to "Amazon.com: high visibility sweatshirt", and so I'd expect the tab to display that updated title. The not-reloading-the-whole-page thing is a great time-saver, but page title seems like it should be on the list of bits to check for changes and be updated accordingly.
OS: Unspecified → Windows XP
Hardware: Unspecified → x86
Because Firefox use the cache. Force cache to change the title. Not really an issue.
Component: Untriaged → Networking: Cache
Product: Firefox → Core
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