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No Small Text
Set a minimum text size for all web content. Use the toolbar button to switch it on and off. NEW: Three preset sizes. NEW: Use mouse scroll on the toolbar button.
InfoNotary Configurator for Mozilla
Requires Restart
Configures Mozilla for work with certificates issued by InfoNotary Plc.
tzpush
Requires Restart
Z-Sync to Thunderbird Addressbook
Will sync Thunderbird address book to Zentyal, Zarafa, Horde and outlook.com/hotmail.
OpenDownload²
Requires Restart
OpenDownload² extends the "Save" dialog by a "Run" button to open the file directly.
Customizations for Adblock Plus
This extension provides various customization options for the Adblock Plus user interface.
QuickPasswords
Requires Restart
Retrieve your Passwords the quick way! Never retype or display your secure passwords on screen anymore - put the password where you need it - the login form or the clipboard.
Now also includes SSO change (multi-domain pw) and Backup + Restore.
Cookies Exterminator
Auto delete cookies, localStorage and IndexedDB objects as soon as they become unused
ThunderBirthDay
Requires Restart
Display birthdays from the Thunderbird addressbooks as events in Lightning.
Perfect View
Image viewer with smooth dynamic zoom, pan and rotate. View slide shows of images or files and capture page elements and tab content. Apply image filters. Save images in various formats.
SyncKolab
Requires Restart
SyncKolab can synchronize your calendar, address book and tasks against an IMAP server in Kolab formats version 1 (vCard/iCal) or version 2 (XML) or turn your Thunderbird/Lightning into a native Kolab Client (http://kolab.org).
No need flash plugin on embeded youtube movies
No need flash plugin on embeded youtube movies
Extra Format Buttons
Requires Restart
Adds a font size (in pixels), strikethough, subscript and superscript buttons to Thunderbird's Compose Window.
Google Privacy
Requires Restart
Make some popular websites respect your privacy settings.
Please see the known issues below!
Link Properties Plus
Requires Restart
Provides extended link properties: size of linked file, last modified time, etc.
about:config Button
Open about:config to change hidden settings that cannot be edited from the Options window. All Mozilla based programs have settings that can not be changed in the options window.
To create your own collections, you must have a Mozilla Add-ons account.