Hi,
I have done some cross browser testing recently. So the idea behind is it to essentially check the UI of the web page across different, and yes it is heavily dependent on browser. In addition to that, other major section that needs to be verified is that the various underlying scripts like Java scripts etc are being executed properly across them. some basic difference for JavaScript in ie and firefox can be found here.
There might be other browser dependent features that your developer might be able to give you a better idea about.
As for your second point, i have found that some elements that are available on ie may not necessarily be available in chrome or firefox or maybe not necessarily in the same hierarchy. Most of them work out just fine, so my thought is that it wont require too much effort and will provide u coverage over an additional browser. So if you can do it.. go for it
I have done some cross browser testing recently. So the idea behind is it to essentially check the UI of the web page across different, and yes it is heavily dependent on browser. In addition to that, other major section that needs to be verified is that the various underlying scripts like Java scripts etc are being executed properly across them. some basic difference for JavaScript in ie and firefox can be found here.
There might be other browser dependent features that your developer might be able to give you a better idea about.
As for your second point, i have found that some elements that are available on ie may not necessarily be available in chrome or firefox or maybe not necessarily in the same hierarchy. Most of them work out just fine, so my thought is that it wont require too much effort and will provide u coverage over an additional browser. So if you can do it.. go for it