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For example, on my machines, I am running the following browsers: Again excluding everyone’s favorite, IE, installing multiple versions of modern browsers is a breeze. If anything is keeping me from completely ignoring older browsers, it is the ease with which they can be tested. There’s no reason to have your designs look identical across browsers, but they should at least be usable. The same is generally true for other modern browsers: supporting older versions can get messy, costing endless amounts of time and energy. And for anyone who does support older Opera, you know how frustrating it can be to target and filter specific versions with CSS. Older versions of Opera are notorious for borking an otherwise perfect design, and the further back you go, the more borked your design is going to get. So how far back should we go? Obviously there’s no reason to go out of our way to support, say, Firefox 1, but what about more recent versions such as 2 or even 3.0? Rendering Differencesįor many modern browsers, the older the version, the more inconsistencies you’ll find. But even for modern browsers like Firefox and Safari, a standards-based design does not always translate to presentational fidelity in older versions. This is one of the reasons why we exclude IE from the conversation - it doesn’t speak the language, and requires a whole realm of special support in and of itself. One of the cool things about adhering to Web Standards during web development is that, theoretically at least, your designs should look similar on all standards-compliant browsers. Most agree that we shouldn’t support old versions of crappy browsers like IE, but what about older versions of good browsers like Firefox, Opera, and Safari? Backwards Compatibility
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It seems that older versions of these browsers are not as common as older versions of IE, so should we bother supporting them when designing our websites? Here I’m referring to old versions of good browsers, like Firefox 2, Safari 2, Opera 8, and so on. I mean, basically anything except for Internet Explorer, which is a debate in and of itself.
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