# Id Name Users TB91 TB102 TB115 TB128 TB140 TB153 TB159 Activity Current Min (ATN) Max (XPI) Max (ATN) Notes
4 711780 LookOut (fix version) 123218 5.4

 5.4

 6.7

 6.7

 7.4.1
 7.4.1
 2026-09-10 7.4.1
 140.0 * 155.*
19 987716 Minimize on Close 27840 2.0.1.4

 2.0.1.4

 2.0.1.4

 2.0.3.0

 2.0.3.0

 2.0.3.0

 2026-06-24 2.0.3.0

 128.0 153.* 153.*
25 987840 PrintingTools NG 22649 2.2.3

 2.2.3

 3.1.3

 3.1.7

 3.1.13

 3.1.16
 2026-09-21 3.1.16
 153.0 * 158.*
40 4970 Tag Toolbar / Tag Popup 13118 2.3.5

 2.4.1

 2.4.7

 2.4.7

 2.4.7

 2025-03-23 2.4.7

 128.0 136.* 158.*
44 90003 LocalFolders 11465 4.0.0

 4.0.0

 4.1.0

 4.1.0

 4.2.6

 4.2.8
 2026-09-26 4.2.8
 153.0 * 158.*
52 986685 Phoenity Icons 10119 3.7

 3.10


 3.14


 3.19


 3.19


 3.19


 2026-03-27 3.19


 128.0 151.* 153.0
81 987888 Message Header Toolbar Customize 5034 2.2.2

 2.3.6

 2.4.3

 2.4.4

 2.4.4

 2.4.4

 2025-03-23 2.4.4

 128.0 136.* 158.*
95 987931 Birthday Calendar 3841 1.0

 1.2.2

 1.2.2

 1.2.3

 1.2.5

 1.2.5

 2026-07-18 1.2.5

 140.0 153.* 153.*
98 988116 Charset Menu 3705 1.1.2

 2.0.0

 2.0.0

 2.1.2

 2.1.2

 2.1.2

 2025-08-07 2.1.2

 128.0 142.* 153.*
106 742199 Attach from Clipboard 3167 1.91.2

 1.91.2

 1.128.6

 2.3

 2.3

 2.3

 2026-08-28 2.3

 128.0 156.* 156.*
112 1898 FolderFlags 2967 1.6.0

 1.6.0

 1.6.0

 1.7.2

 1.7.2

 1.7.2

 2025-08-18 1.7.2

 128.0 142.* 155.*
138 116388 Automatic Dictionary 2122 3.0.1

 3.15.0

 3.15.0

 4.13.0

 4.13.0

 4.13.0

 2026-03-05 4.13.0

 128.0 148.0 157.*
153 646888 Dictionary for recipient 1723 2.3.1

 2.3.2

 2.3.2

 2.4.1

 2.4.1

 2.4.1

 2025-08-07 2.4.1

 128.0 142.* 153.*
178 769143 Lightning Invitation Notifier | LIN 1227 153.0
 153.0
 153.0
 153.0
 153.0
 153.0
 2026-09-05 153.0
 78.0 * 153.*
204 987914 Filter on Folder Button 984 1.2.0

 1.5.0

 1.5.1

 1.6.3
 1.6.3
 1.6.3
 2026-11-06 1.6.3
 128.0 * 158.0
220 988035 Markdown Here Revival 841 3.5.1

 3.5.1

 3.6.0

 4.0.9.1

 4.0.19
 4.0.19
 2026-10-09 4.0.19
 140.0 * 157.*
230 988081 Outlook Address Book Enabler 764 1.0.1

 1.0.2

 1.1.1

 1.1.1

 1.1.1

 1.1.1

 2025-08-07 1.1.1

 115.0 142.* 153.*
287 987729 New Folder Filters Button
↳ Filter on Folder Button		 544 3.3

 3.5

 3.5

 3.10

 3.10

 3.10

 2026-08-20 3.10

 128.0 153.* 153.*
316 988416 Quick Filter By 430 7

 7

 15

 15

 15

 15

 2026-08-17 15

 115.0 153.* 153.*
333 690062 Sender Frequency 382 2.0.5

 2.0.5

 3.0.1

 3.1.2

 3.1.2

 3.1.3

 2026-08-24 3.1.3

 153.0 155.* 155.*
425 989218 Thunderbird Pro 222 1.3.3

 1.9.1

 1.9.1

 2026-06-18 1.9.1

 140.0 153.* 153.*
501 989871 Undo Send Queue 138 2.0.0
 2.0.0
 2.0.0
 2.0.0
 2026-07-10 2.0.0
 115.0 154.* 154.*
669 989352 Calendar Annual View 64 1.1.3

 2026-07-24 1.1.3

 147.0 154.0 154.0
702 989589 WashiBird 54 1.5

 1.5

 1.5

 2026-07-29 1.5

 128.0 154.* 154.*
744 988571 FindNow 44 3.6

 4.3

 4.3

 4.3

 2025-07-09 4.3

 128.0 140.* 153.*
807 990218 Calendar Month Planner 35 1.3.0
 1.3.0
 1.3.0
 2026-09-28 1.3.0
 128.0 * 158.*
939 990196 One-Click Sender Search 19 0.3.7
 0.3.7
 2026-10-14 0.3.7
 137.0 * 158.*
952 990216 Calendar Duplicate Finder 18 1.4.1
 1.4.1
 1.4.1
 2026-09-28 1.4.1
 128.0 * 158.*
1217 989835 Sender Avatars for Thunderbird 6 2.0.9
 2.0.9
 2.0.9
 2.0.9
 2.0.9
 2026-06-29 2.0.9
 102.0 153.* 153.*
1464 990295 Calendar Mover 2 1.1.0
 1.1.0
 1.1.0
 2026-10-09 1.1.0
 128.0 * 158.*
1635 988473 Simple Hello 1 3
 3
 3
 3
 3
 3
 2026-08-17 3
 76.0a1 153.* 153.*
1663 989933 TransferNow 1 1.0.2
 1.0.2
 1.0.2
 2026-10-15 1.0.2
 128.0 * 153.*

Statistics

17
3
2

The report is based on work by Christopher Leidigh, extended by John Bieling.