You can use an extension to set a default font size and page zoom on web pages including fit to width.

• Default FullZoom Level: https://addons.mozilla.org/firefox/addon/default-fullzoom-level/

Thanks, but I have this add-on installed for years and the option "Auto fit to window width" has been enabled all the time and it NEVER worked for me.

I can't believe Firefox doesn't have this basic feature built in. I wonder WHY?

All I see here is zoom functions. I don't want a zoom in feature, nor do want a increase in text font. I just want to maximize the width of my page. imagine, having 2 or 3 inches of dead space on each side of the screen on each webpage. Even when I look at regular Internet explorer, i get the same issue. I wish Firefox could make a ruler just like in Microsoft word, to stretch out the amount of information you can have on the page. If they do have something like that, then i do apologize because I haven't seen it. Its just frustrating to see that. The information gets word wrapped and out of alignment because the text doesn't follow the page.

Make sure that you have selected full page zoom (View > Zoom > [] Zoom Text Only).
Otherwise the full page with all elements won't be zoomed properly.

Sorry, that didn't help my issue. I guess I need to describe better what I see.

                   This is what I see when browsing my pages. An area
                   just like this. Notice how my words don't extend to 
                   the whole area, just in the middle here. Like I said b
                   efore, zoom doesn't work. I've tried the no-squint
                   add-on as well and that doesn't solve my problem. I
                   need to increase the amount of items i see on the p
                   age, like a wider page, not a bigger one. I just added
                   the ruler add-on and my pages are 320x1270? I'd lik
                   e to get it to 150x1400. Thank you.

I get EXACTALY what "SantosHaHa" posted above. (Ffox 20 Win 7 64).

Zoom doesn't help. Make things bigger or smaller, BUT THE PAGE WIDTH IS STILL CROPED!

Have had this problem for 2 years and several versions.

NOTHING seems to work.

I wander why Ffox keeps changing versions so often, with so many new problems apearing, if Netscape worked fine 15 years ago!!!!