Sorry! 0 results found for ‘HTML5’ in ‘English’
Try searching again with a different keyword, or browse our featured articles and threads below instead.
Mozilla does not provide telephone support and does not charge for software downloads, upgrades or technical help. Learn more.
Frequently asked questions about Firefox Accounts on Mozilla Support.
Keyboard shortcuts are quick key combinations that replace mouse navigation. This is a list of commonly used keyboard shortcuts in Thunderbird.
Thunderbird saves personal information such as messages, passwords and user preferences in a set of files called a "profile".
If your mail server supports both IMAP and POP, Thunderbird will use IMAP by default. Use these instructions to manually configure a POP account.
Setting up a new account with Thunderbird is easy. All you need to do is provide your user name and password for your email provider and your email address.
IMAP stands for the Internet Message Access Protocol. It enables a mail client (such as Thunderbird) to access messages stored on a mail server. It is more modern and fully featured than POP (Post Office Protocol), which is the other major protocol for accessing mail messages. Most email providers now support IMAP. To see whether your account uses IMAP or POP, check the Server Settings page in the Account Settings.
If Thunderbird is specified as your system's default email application, it will integrate with other applications (such as word processors and web browsers).
Thunderbird contains three layout options for you to choose from to best fit your preference.
How to customize date and time formats in Mozilla Thunderbird using regional settings or override preferences.
Thunderbird 91.8.0, released 5th April 2022, converts Gmail accounts to OAuth 2.0 in compliance with Google's schedule for requiring this login method.
A user's guide to creating a screenshot of their problem for uploading to the support forum.
Firefox and Thunderbird install Mozilla Maintenance Service to allow seamless background updates. Learn how it works and how to disable or remove it.
The Mozilla Crash Reporter dialog box appears when Thunderbird crashes and lets you send a crash report. Learn how it works and how to access your crash reports.
If you cannot receive messages, this page provides a series of steps you can use to check for common problems.
How to move Thunderbird data (accounts, messages, passwords) to a new computer.
This article explains how to use attachments.
Rebuilding the Global Database will initiate a re-indexing of emails and address book cards (newsgroup messages are not indexed).
This article explains how Thunderbird's adaptive filter learns to identify junk mail ("spam").
Messages with large attachments are often rejected by mail servers. Thunderbird can use web-based storage services to send large file attachments.