Up & Coming Extensions See all »

  • Viewhance

    Photos and Media
    Rated 5 out of 5 stars (2)
    Additional functionality for the browser's default image and video viewer.
    1,202 users
  • Proxy Tool - Powerful, yet User-friendly proxy tool to manage your proxies and anonymity needs, including: 46M+ user agents (world's largest), 10 different spoofed HTTP referrers, auto-proxy rotation, plus many more. Developed by http://ProxyList.co
    19,071 users
  • Mouse gestures for SeaMonkey & Firefox: navigate & execute commands using mouse gestures (with single mouse button) and rocker gestures (by pressing 2 mouse buttons). Also: scroll wheel navigation, page scrolling, tab scrolling.
    4,133 users
  • Adds Firefox-style tab closers into SeaMonkey.
    1,401 users
  • Get international weather forecasts from AccuWeather.com and display them in any toolbar or statusbar with this highly customizable and unobtrusive extension.
    21,148 users
  • QuoteCollapse

    Rated 4 out of 5 stars (25)
    Collapse and expand quotes. Please see the extension homepage for...
    10,880 users
  • Easily and quickly to encrypt / decrypt
    For users: private messages via e-mail, blogs, social networks, forums, etc.
    For webmasters: websites, images, photos, etc.
    Support: Firefox, Thunderbird and SeaMonkey
    1,075 users
  • Send Filter

    Miscellaneous
    Rated 4 out of 5 stars (38)
    This add-on allows you run your message filters automatically on outgoing messages after sending. In other words, it's a outgoing filter for thunderbird and seamonkey.
    5,359 users
  • Quote Colors

    Miscellaneous
    Rated 4 out of 5 stars (42)
    Quote Colors allows you to select text and background colors of different quote levels which are applied when reading or printing mail/news messages. Additionally, you can choose between graphical and traditional plain text quoting display mode.
    15,441 users
  • Webmaster SAPE

    Site-specific
    Rated 5 out of 5 stars (162)
    Toolbar contains a set of functions, which expands the abilities of webmasters and optimizers, when working in the interface of SAPE exchange.
    10,257 users
  • Customize menus : Helps removing, moving and renaming menus and menu items
    Colorize important menu for ease of use! (use Style (CSS))
    Change or disable any of used keyboard shortcuts
    Support: Firefox, Thunderbird and SeaMonkey
    14,479 users
  • Personal Level Indicators

    Rated 4 out of 5 stars (12)
    Shows an indicator so you can tell if an email was addressed only to you (»), a group (›), or a mailing list.
    3,265 users
  • SmartTemplate4

    Miscellaneous
    Rated 5 out of 5 stars (48)
    SmartTemplate4 offers an easy way to automatically create customized replies by auto-inserting various mail headers. Templates can be created for every account as well as for the default (all email accounts). Also supports the Stationery Add-on.
    17,707 users
  • Manages the Remote XUL whitelist to allow websites and local files to load XUL content.
    41,686 users
  • Sync engine for RequestPolicy.
    1,660 users
  • FB2 Reader

    Rated 5 out of 5 stars (34)
    Allows reading FictionBook files with Firefox
    15,518 users
  • Displays icon for user agent of received mails.
    36,727 users
  • DontPhishMe

    Rated 5 out of 5 stars (1)
    DontPhishMe is an Anti-Phishing addon for Mozilla Firefox which utilizes the pattern matching techniques to provide the Malaysian Internet user with information and notification to protect them against online banking phishing website.
    1,100 users