推荐十几款Firefox web开发插件（转载）

开发工具

1. Web Developer 1.1.8  
    https://addons.mozilla.org/en-US/firefox/addon/60 
   by chrispederick 
   The Web Developer extension adds a menu and a toolbar with various web developer tools. 
   说明：超强的web分析工具，开发人员必装。
   
   

2. Firebug 1.5.0 
   https://addons.mozilla.org/en-US/firefox/addon/1843 
   Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page... Firebug integrates with Firefox to put a wealth of development tools at your fingertips while you browse. You can edit, debug, and monitor CSS, HTML, and JavaScript live in any web page. Visit the Firebug website for documentation, screen shots, and discussion forums: 
   说明：查看，编辑，Debug页面的CSS,HTML,JavaScript。超强的开发调试的工具，开发人员必装。
   
   

3. LinrLightWeb 0.2.1
   https://addons.mozilla.org/zh-CN/firefox/addon/14068 
   F*安装前，请确认您已安装Firebug插件，获取Firebug请访问:http://getfirebug.com/
   1. 开启网页编辑模式，随意编辑网页——Fiddler的好搭档；
   2. 超强Selector，查找操做标记；
   3. 刷新CSS，无需刷新整页；
   4. 快速设置CSS Sprites背景，鼠标拖移便可获得位置；
   5. 保持登陆状态，Session不过时；禁用
   6. 同步发行IE版，Chrome版。
   说明：很是强的web开发工具。
   
   

4. View Source Char 2.7 
   https://addons.mozilla.org/en-US/firefox/addon/655 
   by Jennifer Madden(MM) 
   Draws A Color-Coded Chart of a Web Page's Source Code. 
   说明：显示很是好看的源码, 分级缩进, 不一样颜色区分。
   
   

5. Tamper Data 11.0.0 
   https://addons.mozilla.org/en-US/firefox/addon/966 
   Use tamperdata to view and modify HTTP/HTTPS headers and post parameters. 
   说明：查看 firefox 收发请求的 header, 特别是在发出请求前, 能够修改 header。
   
   

6. JavaScript Debuger 0.9.87.4 
   https://addons.mozilla.org/en-US/firefox/addon/216 
   Venkman is the code name for Mozilla's JavaScript Debugger. Venkman aims to provide a powerful JavaScript debugging environment for Mozilla based browsers. 
   说明：firefox 环境下的 JavaScript Debugger, 强大的脚本调试工具。
   
   

7. Live Http Headers 0.15 
   https://addons.mozilla.org/en-US/firefox/addon/3829 
   View HTTP headers of a page and while browsing. 
   说明：浏览页面同时记录全部 HTTP headers 。
   
   

8. Add N Edit Cookies 0.2.1.3 
   https://addons.mozilla.org/en-US/firefox/addon/573 
   Cookie Editor that allows you add and edit "session" and saved cookies. 
   说明：查看而且修改 cookies, 不方便的地方是显示全部浏览器的 cookies 而不只是当前页。
   
   

9. XPath Checker 0.4.1 
   https://addons.mozilla.org/en-US/firefox/addon/1095 
   An interactive editor for XPath expressions. Choose 'View XPath' in the context menu and it will show the editor. You can edit the XPath expression and it incrementally updates the results. 
   说明：听说能够调试 XPath。
   
   

10. YSlow 2.0.6
    https://addons.mozilla.org/zh-cn/firefox/addon/5369
    YSlow analyzes web pages and why they're slow based on Yahoo!'s rules for high performance web sites. 
    说明：可以帮咱们分析web页面比较慢的缘由，它是基于Firebug的，也能分开浏览web页面的元素，好比js,css.
    
    

HTML验证

1. HTML Validator(based on CSE HTML Validator)1.2.3 
   https://addons.mozilla.org/en-US/firefox/addon/887 
   Validates HTML documents using the CSE HTML Validator engine for Windows. Requires CSE HTML Validator for Windows. The lite edition is available for free athttp://www.htmlvalidator.com/lite/ 
   说明：著名的 CSE HTML Validator 引擎。
   
   

2. Relaxed the HTML Validator 0.9.5 
   https://addons.mozilla.org/en-US/firefox/addon/3939 
   "Relaxed" is a HTML validator which validates HTML documents using it's own schema definitions written in Relax NG with embedded Schematron patterns.: 
   说明：直接在当前页面上进行 HTML validation, 界面清晰直观。
   
   

3. Total Validator 6.2.0  
    https://addons.mozilla.org/en-US/firefox/addon/2318 
   by Andy Halford 
   Perform multiple validations and take screen shots in one go. This 5-in-1 validator works with external, internal, or local web pages using the Total Validator service or local copy of the desktop tool... 
   说明：把当前页面在 http://www.totalvalidator.com 作HTML Validation,输出结果用红字进行了语法修正, 比较友好。不过因为经过其余网站验证, 速度有点慢, 而且结果不易保存。
   
   

页面设计

1. MeasureIt 0.3.92 
   https://addons.mozilla.org/en-US/firefox/addon/539 
   Draw out a ruler to get the pixel width and height of any elements on a webpage. 
   说明：能够测量页面上任何选择区域的长宽, 对界面设计人员很是有帮助。
   
   

2. ColorZilla 2.0.2 
   https://addons.mozilla.org/en-US/firefox/addon/271 
   Advanced Eyedropper, ColorPicker, Page Zoomer and other colorful goodies...
   说明：从页面, 或者调色板上取色, 同时能够缩放页面。
   
   

SEO广告

1. RankQuest SEO Toolbar 3.9.2 
   https://addons.mozilla.org/en-US/firefox/addon/1471 
   RankQuest SEO(Search Engine Optimization) Toolbar provides you quick access to more than 30 intuitive SEO tools. Alexa Rank and Page Rank provided by Alexa and Google respectively ensures the popularity of the site. Once you download and install the SEO Toolbar you are only one or two clicks away from carrying out most of your day to day SEO... 
   说明：SEO 工具插件, 访问一个页面时, 显示此页面的各类排名及 SEO 信息。
   
   

2. Adsense Preview 1.5 
   https://addons.mozilla.org/en-US/firefox/addon/2132 
   Preview the Google ads that may show on any web page. 
   说明：在当前页面上显示 Google ADs 帮助肯定广告位置。
   
   

其余工具

1. HackBar 1.4.2 
   https://addons.mozilla.org/en-US/firefox/addon/3899 
   Simple security audit / Penetration test tool. 
   说明：快速对字符串进行各类编码的工具, MD5, Base64, URLencode, URLDecode。
   
   

2. Document Map 0.6.1 
   https://addons.mozilla.org/en-US/firefox/addon/475 
   Displays the current page's heading structure in the sidebar, allowing rapid navigation between... 
   说明：提供页面资源结构信息.。
   
   

3. IE View Lite 1.3.5 
   https://addons.mozilla.org/en-US/firefox/addon/1429 
   

   This is a cut down version of IE View by Paul Roub, which is 47.4 KB. All the same UI and features are there. It has a right click menu item to open a page in IE and a list of sites to always open in IE. It can close tabs automatically and send... 
   说明：点右键能够选择在 IE 中打开页面, 有助于跨浏览器调试。
   
   

4. TimeStamp Converter 2.0.0 
   https://addons.mozilla.org/en-US/firefox/addon/2063 
   Converts dates and timestamps.Context menu option to convert the selected timestamp into a date. 
   说明：除去从上下文中转换, 还能够手动将 timestamp 时间戳与 date/time 转换。
   
   

5. TimestampDecode 0.1.8 
   https://addons.mozilla.org/en-US/firefox/addon/3208 
   Treats the selected number as a timestamp and displays a decoded date/time. 
   说明：将选中的数字做为 timestamp 时间戳转换为 date/time。
   
   

6. Fire Encrypter 4.0 
   https://addons.mozilla.org/en-US/firefox/addon/2063 
   FireEncrypter is an Firefox extension which gives you encryption/decryption and hashing functionalities right from your Firefox browser, mostly useful for developers or for education & fun... 
   说明：将文字加密成各类算法的密文, 甚至包括摩尔斯码。
   
   

7. Add-in-one Sidebar   
   https://addons.mozilla.org/en-US/firefox/addon/1027 
   AiOS lets you open various windows as sidebar panels, and quickly switch between them. So it put an end to the window chaos! In addition to bookmarks and history it opens dialogues such as downloads, add-ons and more in the sidebar. 
   说明：在浏览器左侧增长打开书签, 历史, 插件等的工具条。