I don't understand your description of the problem.
What do you mean by the phrase "Minimizing the webpage won't sink it to the bottom bar, just closing it. (including the text editor)"
Specifically:
- How does one "minimize the webpage?" Did you mean "minimize the tab in which a web page is displayed," or, perhaps, "minimize the window in which the Firefox application is displayed?"
- The sub-phrase "won't sink it to the bottom bar" seems ambiguous. The "it" refers to something, but what is it?
- The part reading "just closing it" again uses "it" without a clear meaning.
- The parenthetical "(including the text editor)" introduces a new, previously unmentioned, item: a "text editor." Where did that come from, and what does it have to do with the Firefox web browser?
Note that the default setting of the newer FF releases will close FF if the last open tab is closed. This default behavior can be changed in the Preferences settings if you've installed the
Tab Mix Plus extension.