This bug is affecting me as well. But not even as a result of rapidly changing tabs/pages. It simply happens, even when switching pages slowly.
Find attached a screenshot. As you can see, I've navigated to Google, but it still shows Yahoo! in the window title.
I've noticed if I switch to another window, then Firefox seems to update its window title to reflect the current loaded page.
This bug is affecting me as well. But not even as a result of rapidly changing tabs/pages. It simply happens, even when switching pages slowly.
Find attached a screenshot. As you can see, I've navigated to Google, but it still shows Yahoo! in the window title.
I've noticed if I switch to another window, then Firefox seems to update its window title to reflect the current loaded page.