Clean up window and make firefox show what it needs to

Question

I a having a huge problem with firefox as well as most all other browsers I use a netbook computer nearly 100% of the time because of the portability, but I have found that netbooks screens typically are not as big as desk tops, now I don't mean physical size but content size, an example would be back when things were only text, (yeah I am that old) the screen size was 80 by 40 or 80 character's wide ad 40 lines long for a full screen, however i don't know how to make this example in graphics, where nearly everything now resides, but the netbooks seem to save space on their displays by removing the last two lines at the bottom of the screen so every thing seems to look right but where my problem, is many websites and several programs will pop up a window that tends to be locked into place and the "accept", "continue" and many other necessary buttons and such, are at the bottom to the popup and I cannot get to the buttons so I cannot use the program or website because when I try to move the popup or advance to the button the popup will move and show the buttons but when I release the window it will slide or pop back to the position where I can no longer see of get to the buttons
Is there something I can do with firefox to get access to these buttons when no matter what I try, the pup up bounces back to the unusable position before I can click the button(choices)
One last thing I have a question on. Lately I had the bookmarks left pane just display by its self as in the question at http://support.mozilla.org/en-US/questions/847020 except unlike this person I actually had a [X] at the top but it would not allow me to close the pane (making my already smaller display more difficult to use) but thankfully I ran across this question and tried the answer of "{Ctrl + B} closes & opens the Bookmarks Sidebar" and thankfully it went away but where can i get all the hot key combinations that lets me do things without using the mouse? And how did this pane pop up on its own and why didn't the [X] at the pane top allow me to close it?
Thank you

Answer 1

I have this same problem, but I believe it is a major problem and not just an annoyance as in the original poster.
It seems my laptop displays the proper width but is lacking the last inch at the bottom of the screen, and the websites I visit a lot will have pop up windows that grey out the original screen and has a blue bar at the top of the pop up but if I try to grab the window and move it up so I can get to the necessary selections buttons at the bottom, then I release the window it either slides back to its original position or it pops back to its original position.
I believe this is a programming problem with the website but I find it hard to believe a web author would do such a stupid thing like this making the website totally useless for those people who use laptops, tablets, and mobile devices. where the screens do not display the normal size of a typical desktop monitor. Knowing that today, of those people who access the internet, 82% of them will access the internet from a laptop, notebook,, tablet, or other mobile devices. Any web designer who uses this lock in place pop up window should know they are losing 82% of the potential customers simply because they are not able to access the proper buttons at the bottom of the popup window.
I have been a computer expert nearly as long as the original poster (I missed the text only stage of computer displays) and I cannot figure out any way of getting around this stupid coding mistake in website design, so the website is useable. So if FoxFire could give me a way I can get past this coding mistake and let me gain access to the un-movable or re-display to a position popup, I guess I will be like the other 82% of surfers today, and simply go to a website that does not make using their site imposable because they are too stupid to know that today's web-surfing customers use other methods to view the internet and who leave their desktops at home.
I cannot believe web developers don't check their website coding on several devices before posting the site for internet usage, I know I check everything I write on all the devices I can before I will upload the site to the internet, oh well, my customers will get the surfers and they will simply get ignored because surfers cannot use their sites.