Header Tools Improved :: Versions :: Add-ons for Thunderbird

Version 4.8 Released July 11, 2024 41.4 KiB Works with Thunderbird 126.0 - *

ESMified the add-on.
Fixed deleting original messages for Thunderbird 126.
Set minimum version to Thunderbird 126.0.
Set maximum version to Thunderbird 129.*.

Source code released under GNU General Public License, version 3.0

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Version 4.7 Released July 10, 2024 41.5 KiB Works with Thunderbird 115.0 - 125.*

Fixed deleting original messages for Thunderbirds 115 through 125.
Set maximum version to Thunderbird 125.*.

Source code released under GNU General Public License, version 3.0

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Version 4.6 Released July 8, 2024 41.6 KiB Works with Thunderbird 115.0 - 129.*

Tweaked the header details dialog.
Fixed sometimes creating zero byte files in Trash.
Set maximum version to Thunderbird 129.*.

Source code released under GNU General Public License, version 3.0

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Version 4.5 Released June 9, 2024 41.4 KiB Works with Thunderbird 115.0 - 129.*

Fixed deleting original messages for Thunderbird 127.
Set minimum version to Thunderbird 115.0.
Set maximum version to Thunderbird 128.*.

Source code released under GNU General Public License, version 3.0

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Version 4.4 Released March 27, 2024 41.5 KiB Works with Thunderbird 111.0 - 127.*

Fixed failing full source warning dialog.
Added French locale, thanks to DenB for the translation.
Set maximum version to Thunderbird 126.*.

Source code released under GNU General Public License, version 3.0

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Version 4.2 Released March 17, 2024 40.4 KiB Works with Thunderbird 111.0 - 125.*

Switched to the WebExtension i18n locale system.
Added Dutch locale.
Improved header case detection (ID/Id/id).
Set maximum version to Thunderbird 125.*.

Source code released under GNU General Public License, version 3.0

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Version 4.1 Released Jan. 17, 2024 39.2 KiB Works with Thunderbird 111.0 - 125.*

Fixed Message-ID duplication on messages from outlook.com.
Set maximum version to Thunderbird 123.*.

Source code released under GNU General Public License, version 3.0

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Version 4.0 Released May 22, 2023 39.1 KiB Works with Thunderbird 111.0 - 116.*

Due to Supernova changes in Thunderbird now only works with opened messages.
The Message list context menu is now hidden when no message is visible.
The Message menu submenu was removed.
The font-family for the full source editor was changed to monospace.
Set minimum version to Thunderbird 111.0.
Set maximum version to Thunderbird 115.*.

Source code released under GNU General Public License, version 3.0

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Version 3.9 Released May 24, 2022 32.1 KiB Works with Thunderbird 91.0 - 110.0

Small CSS fix in the header details dialog.
Removed some obsolete version checking.
Set maximum version to Thunderbird 102.*.

Source code released under GNU General Public License, version 3.0

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Version 3.8 Released March 12, 2022 32.3 KiB Works with Thunderbird 91.0 - 102.0

Added editing of In-Reply-To headers.
Set minimum version to Thunderbird 91.
Fixed deleting References headers.

Source code released under GNU General Public License, version 3.0

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Version 3.7 Released Nov. 26, 2021 32.0 KiB Works with Thunderbird 78.0 - 102.0

Added German locale, thanks to Johannes Kayßer for the translation.

Source code released under GNU General Public License, version 3.0

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Version 3.6 Released Oct. 18, 2021 30.8 KiB Works with Thunderbird 78.0 - 102.0

UTF-8 encoded Reply-To headers are now decoded, editing is re-enabled.

Source code released under GNU General Public License, version 3.0

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Version 3.5 Released Oct. 2, 2021 32.6 KiB Works with Thunderbird 78.0 - 94.0

Following the name change chrome and preferences had to be renamed too.
All HeaderTools Lite preferences are migrated to Header Tools Improved.

Source code released under GNU General Public License, version 3.0

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Version 3.3 Released Sept. 30, 2021 31.9 KiB Works with Thunderbird 78.0 - 94.0

The original version of Header Tools Lite has been revived.
To avoid confusion this add-on has been renamed to Header Tools Improved.
The add-on homepage was also changed, please adjust any shortcuts you may have:
https://addons.thunderbird.net/en-US/thunderbird/addon/header-tools-improved