Firefox is a highly popular free web browser from Mozilla. It has brought many innovations such as tabbed browsing (opening new sites in a tabbed window, rather than opening another instance of Firefox). Additionally many fans have written custom scripts to enhance Firwfox's functionality. Firefox comes in versions for the Mac and also Firefox Portable, which installs and runs from a USB drive.

Although popups have become a nuisance on most sites - leading to popup 'blockers' being built into modern web browsers, some websites use popups for legitimate purposes. One example is PebblePad's ePortfolio system, which uses a popup window for file uploads.

Rather than turning the browser's popup blocker off, it is possible to tell Firefox to allow popups from specific websites only. In Firefox, go to Tools | Options .. (screenshot).
  • In the Options window, click on the Content button at the top.
  • Next to Block pop-up windows click on the Exceptions button..
  • In the Allowed Sites - Pop-ups window, type in the base URL of the website to allow popups from..
  • Finally click the Allow button and then Close and OK (screenshot).

Some websites written by, well let's face it, control freaks include code which changes the size of the Firefox viewing window. I hate that. Here's how stop it happening..
  • Mac/Linux users: Click Edit > Preferences. Windows users: Tools > Options
  • Go to the Content Tab
  • To the right of "Enable Javascript," hit "Advanced..."
  • Uncheck "Move or resize existing windows"

On the other hand you may wish to be able to resize Firefox yourself, to standard resolution sizes (screenshot). This is particularly handy for web designers who wish to check how their sites render at different resolutions. Get the window resizer from Firefox Addons..





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