FireBreath is a cross-platform plugin architecture, targeting NPAPI browsers on Windows, Mac OS X, and Linux (Gecko/Firefox, Google Chrome, Apple Safari, Opera) and ActiveX Control hosts, including all versions of Microsoft Internet Explorer. It is designed to make it easier to get started than even doing an NPAPI plugin by hand. A Python-based "fbgen" tool generates a template skeleton and makes it possible to have a functioning browser plugin up and running in 20 minutes.
iMacros for Chrome is an extension that allows you to automate repetitive tasks like visiting the same sites every day, filling out forms, and remembering passwords. It can automatically fill Web forms that stretch over several pages. It can automate the download and upload of images, files, or entire pages (with or without images). iMacros includes a user agent switcher, functions to download PDF and Flash, and ad-blocking and image-blocking functions. iMacros can automatically read data from a Web site and export it to CSV files. You can use this feature to download stock quotes, gather and compare Web store prices, and more. Web professionals can use iMacros for functional, performance, and regression testing of Web applications.
FirefoxSync for DolphinHD is a plugin for DolphinHD to keep information such as passwords, bookmarks, tabs, and history synchronized between you desktop Web browser and you mobile Web browser by using Mozilla Weave/Firefox Sync. It lets you access open tabs from the desktop on Dolphin and the other way around. It is not produced by the Mozilla Foundation.