Hope I'm explaining this right, but the font of the "file edit view history bookmarks tools help" is really small. How can I enlarge this?

Go to the control panel and then into display.. then appearance and change your settings for Windows and buttons... you can change the color of your browser and the size of the text. You can also click on VIEW on the browser and change the size of the text.
Good luck :)

Tried that - it doesn't change the size of the menu, just what I see on the browser.

I'm sorry but, I don't know

Control Panel > Display > Appearance > Advanced

Item: Menu

Size: make this larger

NOTE: This will cause the Menu Bar in ALL programs to get larger, not just your browser.

To compensate for the larger tools menu, make the titlebar smaller (and/or it's text also).