1,ie Web Debugging Plugin
IE Developer Toolsbar
firebug.html and CSS Debugging tools under IE
http://www.windowsmarketplace.com/details.aspx?itemid=2695980
Microsoft Script Debugger
Companion.js need to install Microsoft Script Debugger to
Companion.js
JavaScript debugging Tools under IE.
Http://www.my-debugbar.com/wiki/CompanioNJS/HomePage
Superpreview
Primarily for HTML, CSS Debugging and page rendering testing for individual browsers (currently available only for IE6-IE8)
Http://download.microsoft.com/download/5/6/8/568F0D28-0434-4794-B7FC-FB293BCC98FB/SuperPreview_Trial_en.exe
Ietester-also has IE6, IE7, IE8 (Vista compatible)
Http://www.my-debugbar.com/wiki/IETester/HomePage
2,firefox Web Debugging Plugin
FireBug
Firebug is Firefox under a development class plug-in, now belongs to the Firefox five-star powerful recommended plug-ins. It integrates HTML viewing and editing, JavaScript consoles, and network health monitors, and is the right-hand man for developing JavaScript, CSS, HTML, and Ajax. Firebug, like a sophisticated Swiss Army knife, analyzes the details of a Web page from various angles, bringing great convenience to web developers.
https://addons.mozilla.org/en-US/firefox/addon/1843
Web Developer
Web Developer can be said to be the most commonly used by web designers a Firefox expansion kit, it can help us in the design of Web pages can be more heart changing hands, built-in HTML, CSS, Feed ... And so on, so that the design of the Web page can be standardized, not only can save the time to maintain the money, but also to ensure that we designed the Web page in different browsers, can be normal display, and is consistent with our expected results. Others are more likely to cancel CSS, Cancel Java, cancel JavaScript, view or remove Cookies ... and other functions.
css-can edit the CSS of the current page and instantly display the modification effect.
Forms-get/post conversion to display all form information.
images-displays the various properties of the picture, and you can find pictures that do not have properties such as Alt,title.
information-two most useful features: viewing cookie information and HTTP response data, Web debugging prerequisites
The most useful feature of micellaneous-: Clear session Cookie. In the past debugging the Web, in order to open a session, had to shut down IE, open again, now do not need.
outline-box with table elements, cell elements, div elements
resize-Simulate 800*600 window size, can customize window size
tools-Verification css/html etc.
View source-display beautiful source code with keyword color
Https://addons.mozilla.org/en-US/firefox/addon/60
Yslow
Why slow page Performance Optimization viewer. Based on Firebug
Http://developer.yahoo.com/yslow
Javascript Debugger
The JavaScript debugging tools under Firefox have more powerful debugging capabilities than Firebug.
https://addons.mozilla.org/en-US/firefox/addon/216
Opera Developer Tools
3, other tools
Opera under the Dom,css View tool, similar to Firebug.
http://dev.opera.com/articles/view/opera-developer-tools/
Webkit
Development and debugging tools under Safari
http://nightly.webkit.org/
Fiddler
A very powerful HTTP streaming viewing tool
http://www.fiddlertool.com/fiddler/
HttpWatch
Data analysis tool, header message receive/Send view, post Data View. Wait a minute.
Http://www.httpwatch.com