Web development tools diverse range of additional features. Web development tools Web development tools allow web developers to test and debug their code. They are different from website builders and integrated development environments (IDEs) in that they do not assist in the direct creation of a webpage, rather they are tools used for testing the user interface of a website or web application. Web development tools come as browser add-ons or built-in features in web browsers. Most popular web browsers, such as Google Chrome, Firefox, Internet Explorer, Safari and Opera, have built-in tools to help web developers, and many additional add-ons can be
Features of Firefox the Google Chrome and Microsoft Edge extension systems, and run within a multi-process environment, but does not enable the same level of access to the browser. Support for XPCOM and XUL add-ons will no longer be offered beginning on Firefox 57. Firefox 3 includes a "Smart Location Bar". While most other browsers, such as Internet Explorer, will search through history for matching web sites as the user types a URL into the location bar, the Smart Location Bar will also search through bookmarks for a page with a matching URL. Additionally, Firefox's Smart Location Bar will also search through page