From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:0.9.9) Gecko/20020408

Description of problem:
Mozilla will discard its previously saved browser window size if a hyperlink is
clicked in a Mozilla Mail email message and there is not a browser window
already open.  It reverts to a default size of 615 x 479 pixels, and this window
size is retained when the browser window is closed and reopened so that the user
must resize the window on the next session.

Version-Release number of selected component (if applicable):


How reproducible:
Sometimes

Steps to Reproduce:
1. Open a Mozilla browser window and set it to a size larger than the default. 
I used 860 x 720.
2. Close all Mozilla browser windows.
3. Open a Mozilla Mail window and click on a hyperlink in an email message.
	

Actual Results:  Mozilla opened a browser window at the default size of 615 x
479, and this size was retained for future sessions.

Expected Results:  The browser window should open at the last size set by the
user, not the default window size.

Additional info:

mozilla-0.9.9-7