Rated 2 out of 5 stars

https://addons.thunderbird.net/en-US/thunderbird/addon/confirmbeforedelete/ is an alternative that works with current Thunderbird

Rated 5 out of 5 stars

Thank you for creating, sharing and maintaining this add-on.
Unfortunately now it is not compatible with the latest versions of Thunderbird. If in any way I can help to continue its development and become compatible again, please let me know.

Thanks again.

Rated 3 out of 5 stars

Wonderful add-on, but we NEED it for TB 60+!!

I'll be happy to offer support if I hear there is a plan to adapt to the new Thunderbird APIs!!!

This is a TRULY helpful add-on when it works!!

This user has a previous review of this add-on.

Rated 3 out of 5 stars

This excellent plugin no longer works with TB 60.4.0
after the last update Grrrr.

Rated 5 out of 5 stars

First, many thanks for this great add-on.

It has recently (ver. 1.2.1) stopped working in TB 31.5.0 on Ubuntu 14.04 LTS:
- doesn't prevent deletion actually
- can't be configured: the configuration dialog doesn't offer OK/Cancel buttons - just 'Close' - but that drops any changes made
- it doesn't even issue a confirmation dialog upon deletion attempt

best regards
Janusz

Rated 1 out of 5 stars

Thunderbird-31.4.0 では、機能不全です。
いとも簡単に、完全に「Delete」されてしまいます。
早急なる「修正・改善」が必要です!

以前、 この(削除不能)機能を求めているユーザーには、是非もなく推奨します。 ★★★★★を付与したのだが・・・・

【その際のReview - December 22, 2014】
メッセージを誤って完全削除してしまった苦い経験が幾度かあります。
このアイテムを利用すれば、簡単で、確実に「削除不能」にできます。
設定項目は、いたってシンプルで、簡単です。
設定後には、削除不能にしたいメッセージを「タグ」でクリックするだけです。
この(削除不能)機能を求めているユーザーには、是非もなく推奨します。

This user has a previous review of this add-on.

Rated 5 out of 5 stars

How many Tags are supported by this AddOn? Does it support only a single tag? Could you extend it to support several tags?
Thank you

Rated 1 out of 5 stars

When I click on options in the Add-On Manager to set the settings, the screen cuts off the Okay/Cancel buttons and I am unable to resize it. Please help!

Rated 5 out of 5 stars

Great addon, it has been indispensable for me as I tend to do mass purges every 6-12 months of my email folders, Trying to remember which files important are important is a thing of the past, once they are marked, anyway!

as a side note: I notice someone saying its not working probably.
I had one problem with the extension gmail buttons, which was deleting my emails regardless of tags.

Rated 1 out of 5 stars

Somehow the extension no longer works reliably after installing TB 17.0.08. It won't retain my settings, and one is able to simply delete messages without seeing a popup...
I uninstalled and reinstalled, but it doesn't make a difference.

Works fine in TB 24.0 for me on Win7.

Rated 4 out of 5 stars

A good add-on, thank you!

But a couple of improvement suggestions.
(1) To be able to apply it to multiple tags.
(2) This would be great - to be able to prevent delete for starred messages.

When I check my mail on my phone, I have no way of adding tags etc, but I can star messages. Therefore I could star a message on my phone and make sure I don't delete it later on Thunderbird.

Rated 5 out of 5 stars

Bonjour
Bravo
une sugestion: peut être la possibilité d' étendre cette restriction à plusieurs étiquettes !

J2m06
*----------------------------------*
Hello
bravo
one sugestion: may be the possibility to extend this restriction on several labels!

J2m06

Rated 5 out of 5 stars

Je ne sais pas comment d'autres font pour ce passer de cet addon, vu la facilité déconcertante avec laquelle on détruit un message/ Thunderbird

J'ai apprécié
* la simplicité d''utilisation :
- appui sur touche numérique 1 pour empêcher l'effacement
- puis appui sur touche numérique 0 pour autoriser l'a suppression
* le soin pour les détails (si un nouvel utilisateur tentait de supprimer un message verrouillé il reçoit un message d'avertissement
* Pas de bug
* Fonctionne sur les comptes IMAP

J'espère qu'un jour cette fonctionnalité soit intégrée dans Thunderbird

Rated 2 out of 5 stars

Good idea and implementation but works on a local basis only. What about if the same account is setup on a different PC also (IMAP shared account) ?

Rated 5 out of 5 stars

Hi Pastisman,

Thanks for your interest on the subject.
I am using Thunderbird 11.0, portable edition by portableapps.com. If I select one message protected by PREVENT DELETE and another not protected and press the 'del' at keyboard the protected message is not deleted and the unprotected is deleted, but if I press the button 'delete' with the mouse, both are deleted. I tried a number of times and always that behaviour repeats. I changed the tag name, but noting changed.

Here is available a BMP with a printscreen and some additional information:
http://www.mediafire.com/?pyntu3jasgabp65

Feel free to write me at sukhoi47 AT gmx.net

I have interest in cooperate with you because this is an extremely useful addon and I am searching for since I moved from Pegasus Mail to Thunderbird many years ago.

This user has a previous review of this add-on.

Ok, you're right, the "delete" button in the header of messages list when you select multiple messages keep the previous behavior. I found where it occurs in the code (multimessageview.xhtml) but didn't find yet how to fix it.Thunderbird code is quite weird at this place... Hope I will find an idea.

Rated 5 out of 5 stars

Love this but it only works for one tag. I'd like to be able to have a list of tags.

Rated 4 out of 5 stars

I really like this idea but doesn't seem to work when using the "delete" button in an open message. Another feature to add for next version.

This review is for a previous version of the add-on (1.2).  This user has a previous review of this add-on.

Hi, which OS do you use ? Linux, win or Mac OS ?

Rated 4 out of 5 stars

Not bad if you delete things one at a time, but be aware that it doesn't seem work if you're deleting multiple messages... HINT: that would be a nice upgrade for a future release.

This review is for a previous version of the add-on (1.2). 

It normally works with multiple messages !

Rated 5 out of 5 stars

pastisman you are the bomb!!! Thank you so much!!!

This review is for a previous version of the add-on (1.2).  This user has 3 previous reviews of this add-on.