resizeMyBrowser is a very useful tool for testing multiple screen sizes
selectivizr is a JavaScript utility that emulates CSS3 pseudo-classes and attribute selectors in Internet Explorer 6-8. Simply include the script in your pages and selectivizr will do the rest.
“Friends don’t let friends use Internet Explorer 6. And neither should acquaintances.”
IE Fix: Bicubic Scaling for Images
img { -ms-interpolation-mode: bicubic; }
If you use width or height tags to resize images in your markup, IE will ensure they look incredibly awful unless you use this little snippet. In general, resizing images in the browser isn’t recommended, but of course there are always exceptions.
Superstash is an enhanced web browser that allows you to quickly take screenshots of any page on the web, annotate it, instantly share with friends and colleagues, or file it for future reference. Take a full-screen screenshot or use it’s built-in cropping tool to hone in on a selected area.
Take control of your CSS
Say goodbye to the browser-specific properties and hacks cluttering your files and say hello to lean, mean CSS. With eCSStender, when you write the rules, browsers pay attention.
Accurately pinpoint compatibility issues and compare web pages at a glance to easily identify differences and potential problems. Preview full screenshots with multiple view options and customizable test settings. (via cross-browser testing service, web diagnostic tools | Adobe BrowserLab: features)
