ਐਨਡਰੋਇਡ ਐਡ-ਆਨ

Remove Duplicate Messages Eyal Rozenberg ਵੱਲੋਂ

Search and remove messages which are the same as other messages in your mail folders (referred to as duplicates or dupes).

Mail Redirect Onno Ekker, Pawel Krzesniak ਵੱਲੋਂ

Allow to redirect (a.k.a. "remail") mail messages to other recipients.

ਸੰਗ੍ਰਹਿਕ ਦੇ ਨੋਟ なるべく余計な手を加えずにそのまま転送するために。

CompactHeader jmozmoz ਵੱਲੋਂ

Add symbol in header plane to switch between compact and expanded view. Work only for Thunderbird 68.0 and older. Currently, there are no plans to update this for newer versions.

Quote Colors Malte Ruecker ਵੱਲੋਂ

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.

ਸੰਗ੍ਰਹਿਕ ਦੇ ਨੋਟ 標準のスタイルよりこっちの方が自分は見やすい。

Thunderbird Message Filter Import/Export Enhanced kounavi ਵੱਲੋਂ

Thunderbird Message Filter Import/Export Enhanced is a compatibility port of Wind Li's add on.
Original add on here: https://addons.mozilla.org/en-US/thunderbird/addon/thunderbird-message-filter-imp/

Thunderbird Message Filter Import/Export Wind Li ਵੱਲੋਂ

Thunderbird Message Filter Import/Export is a thunderbird/mozilla extension to import/export message filters.

ਸੰਗ੍ਰਹਿਕ ਦੇ ਨੋਟ 常用は言い過ぎかも。1回使ったらもう使わない類のアドオンだし……

Correct Identity ldreier, Dennis Verspuij ਵੱਲੋਂ

Ever sent mail from the wrong email address because you forgot to select the correct identity?

ਸੰਗ੍ਰਹਿਕ ਦੇ ਨੋਟ プライベートなメールと仕事のメールとを同じ所にぶち込んでるので、差出人を選択し忘れるのを防ぐために。

Folderpane Tools chuonthis, Philip Chee ਵੱਲੋਂ

Allows for customization of the folder pane. Accounts can be rearranged and the startup folder can be chosen.

ਸੰਗ੍ਰਹਿਕ ਦੇ ਨੋਟ 常用は言い過ぎかも。1回使ったらもう使わない類のアドオンだし……

Priority Switcher H.Ogi ਵੱਲੋਂ

Change priority of the received messages from the toolbar button and the context menus...

Before Tabs Toolbar Paenglab ਵੱਲੋਂ

Adds a toolbar before the tabs.

Ruler Bar Piro (piro_or) ਵੱਲੋਂ

This appends a ruler to the mail composition window.

ਸੰਗ੍ਰਹਿਕ ਦੇ ਨੋਟ なんとなく、あると安心する。無くても使える。そんな機能。

XUL/Migemo Piro (piro_or) ਵੱਲੋਂ

This provides dictionary-assisted search (Migemo search) and regular expression powered search for "find in this page" and other features.

ਸੰਗ੍ਰਹਿਕ ਦੇ ਨੋਟ 対応させてみたので入れてるけど、いまいち自分でも使ってない。

CuteMenus - Crystal SVG mrtech, Static_Nexus, ਹੋਰ ਵੱਲੋਂ

Note from Mozilla: This add-on has been discontinued. Try Menu Icons Plus instead.

Adds icons to all menus along with some other features...

ਸੰਗ੍ਰਹਿਕ ਦੇ ਨੋਟ メニューの視認性が上がる。

Sync On Arrival Michael Buschbeck ਵੱਲੋਂ

Downloads new message headers (and bodies, if configured) immediately when Thunderbird detects new messages in an IMAP folder - that's more or less what the "download_on_biff" preference promises to do, but somehow fails to deliver...

ਸੰਗ੍ਰਹਿਕ ਦੇ ਨੋਟ IMAP使うならこれがないとやってらんないと思う。