Web Development

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PerfectPixel

Allows developers to put a semi-transparent image overlay over the top of the developed HTML and perform per pixel comparison between them. Works with both Dev Tools and Firebug

Firefox version of PerfectPixel for Chrome with 100 000+ active users

Rated 5 out of 5 stars (2)
2,140 users

Performance Reporter

Displays extensions and tabs CPU and memory usage

Rated 3 out of 5 stars (11)
433 users

Performance-Analyser

Get insight into the performance of the website in the current tab - sort of a mini live version of WebPageTest.

Rated 5 out of 5 stars (2)
1,411 users

PerformanceTest Requires Restart

PerformanceTest is a Firefox Addon to test the Firefox load time.

Rated 5 out of 5 stars (1)
403 users

Perldoc.jp 翻訳通知

search.cpan.orgmetacpan.org、perldoc.perl.orgで表示しているドキュメントがperldoc.jpで翻訳されている時に通知します。

Not yet rated
1 user

Permanent URL Requires Restart

Zweite (mehrzeilige) Adresszeile, welche sich nicht durch Weiterleitungen beeinflussen lässt. Hierdurch ist es einfacher möglich, Penetrationstests anzuwenden, welche z.B. XSS- oder SQL-Injections abdecken.

Not yet rated
15 users

Permission Editer

This extension can block web-access, sub-request, Javascript, XMLHttpRequest and Cookies.

Rated 1 out of 5 stars (1)
50 users

Personas Interactive Theme Engine Requires Restart

Created by http://BrandThunder.com where you can Build Your Own Browser Theme. Remove the limits of Personas. Get unlimited Personas, legible text; use with Firefox themes installed. Create your own Personas gallery; full CSS3 backgrounds, and more

Rated 2 out of 5 stars (39)
9,565 users

Pertinkina - (C) Visuddhi Requires Restart

With Pertinkina you can see two different website in just one tab...

Rated 3 out of 5 stars (2)
1 user

pesticide

Cascading Style Sheets can be tricky. Placing an outline on every element can help you figure out what is going on.
This extension inserts the Pesticide CSS into the current page, outlining each element to better see placement on the page.

Not yet rated
222 users

PEXA Digital Signing

Firefox add-on support for Signing documents digitally in PEXA.

Not yet rated
11 users

PhishTank SiteChecker Requires Restart

PhishTank SiteChecker gives Firefox users a way to bring the community judgment of PhishTank (http://www.phishtank.com/) into their favorite browser, for extra protection against phishing...

Rated 4 out of 5 stars (9)
321 users

Phoenix Requires Restart

An editor with real time syntax highlighting which allows edit, run and test CSS, HTML and JavaScript code. Phoenix will tell you how many CSS and JS files are loaded into a page, how big these are, it will let you edit, pack and de-obfuscate them.

Rated 4 out of 5 stars (45)
1,740 users

photofoxx Requires Restart

Ever had to edit a photo while working on a design and wished you had a handy photo editor right there, without having to open an extra desktop application? Here is PhotoFoxx!. Just click on the toolbar icon and start editing your photos.

Rated 5 out of 5 stars (1)
69 users

PHP Developer Toolbar Requires Restart

Stop searching at PHP.net to simply remember some function signature. With this addon you can search functions quickly for the official function description directly into your browser without a new tab.
Plus, many tools to help PHP developers.

Rated 4 out of 5 stars (22)
3,394 users

php function cache

a helper of PHP function cache tool

Not yet rated
20 users

phplangeditor Requires Restart

GUI for translation of language files of your PHP scripts. By language file I mean files containing all translated strings of your script...

Rated 4 out of 5 stars (5)
49 users

phpMyAdmin Timeout Preventer Requires Restart

A small, simple extension which prevents against phpMyAdmin's session timeouts.

Rated 4 out of 5 stars (13)
721 users

phpMyAdminTools Requires Restart

phpMyAdminTools - Advanced phpMyAdmin Tools

Rated 4 out of 5 stars (1)
167 users

Pic Style - Checkerboard Requires Restart

Add a checkerboard background on Firefox view image pages to help show image transparency.

Rated 5 out of 5 stars (6)
35 users