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  • TT DeepDark

    Smooth dark theme for Thunderbird
    • Firefox version available here •
    40,974 users
    Rated 5 out of 5 stars (97)
  • Walnut2 for Thunderbird

    Walnut2 for Thunderbird, based on icons from art.gnome.org. Walnut2 is based on Walnut but with better looking wood panels. Fully compatible with from 5.0 upto latest nightly build (currently 27.0a1). Full support for Lightning/calendar.
    18,114 users
    Rated 5 out of 5 stars (30)
  • Ignore Aero

    Ignore Aero on Windows 7 and Vista, restore the look and feel of Thunderbird 3!
    5,365 users
    Rated 5 out of 5 stars (48)
  • NoGlass

    Remove Aero glass in TB and give the option of colored icons
    11,382 users
    Rated 5 out of 5 stars (30)
  • MS Office 2003 JB Edition

    MS Office 2003 Theme.
    19,938 users
    Rated 5 out of 5 stars (30)
  • xpDefault

    Default XP theme for Windows 7

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    Thank you all for donations! If you have any suggestions (or bug reports), don't hesitate to add a review below or write me an e-mail.
    3,633 users
    Rated 5 out of 5 stars (15)
  • Silvermel

    A Creamy Silvery Experience
    89,260 users
    Rated 5 out of 5 stars (509)
  • Nautipolis for Thunderbird

    Nautipolis for Thunderbird: High-quality, solid theme based on icons from art.gnome.org.
    Fully compatible with from 5.0 upto latest nightly build (currently 27.0a1). Full support for Lightning/calendar.
    13,712 users
    Rated 5 out of 5 stars (19)
  • Charamel

    A Creamy Sugary Experience
    31,952 users
    Rated 5 out of 5 stars (91)
  • Oxygenate

    An Oxygen icon theme for Thunderbird and Lightning
    3,061 users
    Rated 5 out of 5 stars (25)
  • Outlook 2003 GreenTB

    A Outlook 2003 Theme in Green to give the feeling of the Office look and a better integration in the Green Windows XP...
    1,005 users
    Rated 5 out of 5 stars (7)
  • NASA Normal

    Simple white and gray theme with NASA styling
    686 users
    Rated 5 out of 5 stars (16)
  • CrossOver

    Now works with Thunderbird 2.0.
    An Aqua Theme for Mozilla.
    3,157 users
    Rated 5 out of 5 stars (20)
  • 2nd Classic

    Looks like some Mac application.
    2nd Classic is Simple and Clean Theme for Thunderbird 2.
    989 users
    Rated 5 out of 5 stars (46)
  • Nuvola TB

    Theme based on the Nuvola icon set by David Vignoni (http://icon-king.com/?p=15).

    You can find developer versions under http://mozilla.paenglab.ch/
    18,783 users
    Rated 5 out of 5 stars (55)
  • Littlebird for Thunderbird

    Littlebird for Thunderbird, based on icons from art.gnome.org. Fully compatible with from 5.0 upto the latest nightly builds (currently 27.0a1). Full support for Lightning/calendar.
    5,687 users
    Rated 5 out of 5 stars (15)