Thunderbird 68.x compatibility · Issue #171 · thsmi/sieve · GitHub


Thunderbird 68.3.0

Thunderbird 68.3 fixes a number of safety vulnerabilities. You discover detailed details about every on the official security advisories page. The e-mail consumer will not be affected by important points; the very best severity ranking is excessive.


Here’s a quick checklist of mounted points:

  • CVE-2019-17008: Use-after-free in employee destruction
  • CVE-2019-13722: Stack corruption attributable to incorrect variety of arguments in WebRTC code
  • CVE-2019-11745: Out of bounds write in NSS when encrypting with a block cipher
  • CVE-2019-17009: Updater non permanent recordsdata accessible to unprivileged processes
  • CVE-2019-17010: Use-after-free when performing system or
  • CVE-2019-17005: Buffer overflow in plain textual content serializerientation checks
  • CVE-2019-17011: Use-after-free when retrieving a doc in antitracking
  • CVE-2019-17012: Reminiscence security bugs mounted in Firefox 71, Firefox ESR 68.3, and Thunderbird 68.3

The official release notes checklist two additions to Thunderbird 68.3.0. Extension builders might use the newly applied Message Show Toolbar Motion WebExtension API, and navigation buttons are actually out there in content material tabs within the software.

Home windows customers who use Thunderbird might discover that the brand new e-mail icon has modified on the system.

The remaining adjustments tackle points in earlier variations of the e-mail consumer. Not one of the points look like main, e.g. that attachment icons weren’t all the time appropriate within the write pane or that the drag & drop reordering of accounts was not engaged on the Prompt messaging standing dialog.


Customers who seen that toolbar buttons of add-ons wouldn’t present up within the menubar after begin will not expertise that subject anymore within the new Thunderbird model.

Now You: which e-mail consumer do you utilize?


Article NameEmail consumer Thunderbird 68.3.0 is out DescriptionThe Thunderbird staff has launched Thunderbird 68.3.0 lately. The replace addresses a number of safety points and (largely) bugs within the consumer. Creator Martin Brinkmann Writer Ghacks Know-how Information Brand



Thunderbird’s preliminary design

Portrait from Shin Megami Tensei: Unusual Journey

Thunderbird in Persona 5 Royal

Thunderbird casting Mazionga in Shin Megami Tensei V

サンダーバード – 真・女神転生V 日めくり悪魔 Vol.079Thunderbird in SMTV Every day Demon #079


It’s vital to notice that the Thunderbird e-mail issues mentioned above typically result in performance and efficiency inefficiencies. Contemplating that Thunderbird growth has been unstable for a couple of years now, it’s best to count on to expertise points often. It may be annoying to many customers when a problem persists, although most points may be simply mounted. Save your self the annoyance and take a look at a brand new e-mail consumer. Obtain Mailbird at no cost to verify it matches your wants.

Get Mailbird and Examine the Most Efficient Method to Handle Your E-mail Accounts! Strive Mailbird for Free

How do I repair my Thunderbird e-mail?

You may repair your Thunderbird e-mail points by adequately organising an e-mail account, selecting the suitable supplier, trying into incoming and outgoing e-mail points, disabling add-ons, fixing freezing points, and fixing IMAP server errors.

Why is my Mozilla Thunderbird not working?

One of many major causes could also be antivirus or firewall software program stopping Thunderbird from delivering your priceless messages. Merely disabling the instruments will serve the aim.

Is Thunderbird e-mail nonetheless supported?

Thunderbird is an open-source app, nevertheless it’s not upgraded and supported by Mozilla. There are numerous high quality alternate options (e.g., Mailbird) current within the on-line sphere.

Why does Thunderbird preserve freezing?

Thunderbird typically freezes or hangs attributable to antivirus interference, problematic settings, or some program or service interference.

What ought to I do if I can’t hook up with the mail server in Thunderbird? If this occurs, first attempt to log into your account by an internet browser. Then, restart the Thunderbird app and attempt to re-login. If this doesn’t work, you may also strive enabling entry to much less safe apps by way of the safety settings of your e-mail account within the webmail interface. Or strive including Thunderbird as an exception in your antivirus program.

Basic Thunderbird Addon

The basic addon is badly damaged for TB68 and up. Since final week help for “basic” addons was formally dropped by Thunderbird and the corresponding code was eliminated for Thunderbird’s code base. ()

So the basic addon is useless as useless might be. I additionally eliminated any code referring to the previous basic add-on from the repository.

What does this imply for the longer term?

The possibilities for a brand new WebExtension based mostly Thunderbird addon are at the moment trying higher.

The long run for “WebExtension Experiments” continues to be by some means unclear. You may learn very completely different statements on the Thunderbird mailing checklist. However a minimum of for the following one to 2 years they appear to be promised to remain. However there are sadly no ensures. And if the experiments go await the addon will likely be additionally gone.

So the longterm focus will stay on the app.

Thunderbird in Varied Cultures

Thunderbird of the Menominee Peoples

In keeping with the Menominee tribe, the Thunderbirds reside on an unlimited mountain that floats within the sky. These majestic creatures are identified to regulate the weather (rain, hail, and many others.) and generally watch the happenings of human life. They’re stated to search out nice pleasure in combating and the accomplishment of spectacular feats. These Thunderbirds are identified to be enemies of the Misikinubik (The Nice Horned Snake) and are the explanation mankind has not been devoured or overrun.

The Menominee Thunderbirds are additionally identified to be messengers of the Nice Solar and had been extremely revered by these peoples.

Thunderbird of the Ojibwe Peoples

The Ojibwe legends of the Thunderbird declare this creature was created by Nanabozho (one of many tradition’s hero figures) with a purpose to shield individuals from evil underwater spirits. They lived within the 4 instructions and migrated to the land of the Ojibwe in the course of the spring with different birds. Throughout this time they fought the underwater spirits. They stayed till the autumn when probably the most harmful season for the underwater spirits had handed. Within the fall, they migrated south with different birds.

The Ojibwe Thunderbird legends additionally recommend that these creatures had been chargeable for punishing people who broke ethical guidelines. Because the anger of the Thunderbird is understood to be excessive, this is able to have been nice incentive to take care of good ethical conduct.

Thunderbird of the Winnebago Peoples

The Thunderbird of the Winnebago individuals means that this creature additionally had the ability to grant individuals nice skills. Their traditions dictate that any man who has a imaginative and prescient of the Thunderbird throughout a quick will in the future turn into a mighty battle chief.

Thunderbird of the Sioux Peoples

Sioux legends declare that the Thunderbird was a noble creature that protected people from Unktehila in the course of the ‘previous occasions.’ The Unktehila had been stated to be extraordinarily harmful reptilian monsters – with out the assistance of the Thunderbird it’s unsure if man would have been in a position to overcome these creatures alone.

Thunderbird of the Arapaho Peoples

Arapaho mythology sees the Thunderbird as a summer season creature (as did lots of the tribes of the Nice Plains). In keeping with their legends, the Thunderbird was an opposing drive to the White Owl (the creature that represented winter).

Thunderbird of the Algonquian Peoples

The Algonquian Peoples had deep reverence for the Thunderbird of their tradition. In keeping with their legends, Thunderbirds had been ancestors of the human race. Their tales typically inform of the Thunderbird’s half within the creation of the universe.

In keeping with their myths, Thunderbird dominated over the upperworld and the Nice Horned Serpent dominated over the underworld. Thunderbird protects people from the Nice Horned Serpent and its followers by throwing lighting at underwater creatures.

Thunderbird of the Shawnee Peoples

Like many different tribes, the Shawnee individuals additionally believed the Thunderbird may change its look with a purpose to work together with individuals. Their beliefs, nevertheless, element that Thunderbirds appeared as boys and might be recognized by their tendency to talk backwards.

Thunderbird Troubleshooting: Frequent Thunderbird E-mail Issues

Regardless of the straightforward and extremely environment friendly nature of Thunderbird, customers might sometimes face a couple of efficiency points and errors. Let’s take six frequent Thunderbird e-mail issues and their options into consideration.

E-mail Account Setup Points

Whereas organising the e-mail account, some customers might face operational points like Thunderbird not connecting to the server. You may rapidly repair the issue as follows.

1. Examine Password

First, verify if you happen to’re utilizing the proper password by logging into your account by way of the webmail interface. For instance, you probably have a Gmail account:

  1. Go to
  2. Sort your e-mail tackle after which your password.
  3. If you happen to’ve enter an older password, Google will immediate you to reset it.
  4. You may reset your password by clicking the “Forgot e-mail?” message.
2. Examine Server Settings

In case your password is appropriate otherwise you set a brand new one and issues persist, go to Thunderbird and launch the Server Settings. You will discover them following this path:

  1. Click on on the e-mail account that experiences points.
  2. Underneath Choices click on on Account Settings.
Select Server Settings in the left-hand tab.
  1. Choose Server Settings within the left-hand tab.
To make sure you have the correct server settings,

To ensure you have the proper server settings, take the next particulars under consideration.

  1. Have the area title (e.g., after the server title, which is Mail.
  2. Make sure that Port is 993 for IMAP or 995 for POP.
  3. Set the Connection Safety to TLS/SSL.
  4. Use the consumer’s full e-mail tackle as a Person Title. 
  5. Use the Password as an Authentication.
  6. The server doesn’t help encryption.

The Server Doesn’t Help Encryption

You could get a warning concerning the server not supporting encryption attributable to some safety points. This subject can go away the server communications extra susceptible to hacking makes an attempt.

1. Change Settings

Within the warning, you’ll see the Change Settings button. Click on on it and do the next:

  1. Change the safety connection to SSL/TLS.
  2. Change the authentication methodology to “Regular password.”
  3. Change the port to 993.
After changing the settings, save them and re-laun

After altering the settings, save them and re-launch Thunderbird.

2. Select a Completely different E-mail Supplier

If modifying the settings doesn’t remedy the difficulty, you may also select a distinct e-mail supplier that can supply a safer connection.

You’re Unable to Ship or Obtain Messages

Thunderbird would possibly cease sending or receiving messages for a number of causes. It might be a problem with the server settings, your antivirus program, or your web service supplier. Let’s verify every case.

1. Examine IMAP Settings

You want IMAP to obtain messages. To verify the IMAP settings:

  1. Click on on the e-mail account that experiences points.
  2. Underneath Choices click on on Account Settings.
  3. Choose Server Settings within the left-hand tab.

Ensure you’re utilizing the 993 port, SSL/TLS connection safety, and “Regular” password.

2. Examine SMTP Settings

You want SMTP to ship messages. To verify SMTP settings:

  1. Go to Account Settings like within the earlier step.
  2. Click on “Outgoing server” within the left-hand tab.

Ensure you’re utilizing the 587 port, “None” in connection safety, and “Regular” password.

3. Whitelist Thunderbird in Your Antivirus Software program

In case your server settings are effective, it’s in all probability the case that your firewall or antivirus doesn’t belief the Thunderbird model or any new updates.

Whitelisting the e-mail instrument additionally fixes the difficulty for a lot of customers. In Home windows Safety:

  1. Navigate to Settings.
  2. Choose Replace & Safety and select Home windows Safety.
  3. Entry the “Handle settings” possibility after clicking on “Virus & menace safety.”
  4. Go to the “Add an exclusion” possibility by way of “Add or take away exclusions” and choose Thunderbird. 

For Home windows Firewall:

  1. Sort the phrase “firewall” within the Home windows search field.
  2. Choose the “Permit an app by the firewall” possibility.
  3. Click on on the “Change settings” button.
  4. Add Thunderbird to the checklist after hitting the “Permit one other app” button.

If you happen to’re utilizing one other antivirus program, please seek the advice of with its Assist part for particular tips. The method needs to be related although.

4. Rollback Thunderbird

Thunderbird 78 and better variations want enhanced TLS safety requirements. So, with Thunderbird e-mail not working appropriately, the first purpose could also be that your service supplier doesn’t help the newer TLS community encryption protocols. Therefore, customers will likely be unable to ship or obtain emails.

The answer for this subject can lie in merely rolling Thunderbird again to an earlier model. You will discover an earlier launch here. To get to a earlier model:

  1. In your present model, go to the menu > Preferences and scroll all the way down to Updates
  2. Flip off computerized updates by switching your desire to “Examine for updates, however let me select whether or not to put in them.”
Uninstall Thunderbird without deleting any profile
  1. Uninstall Thunderbird with out deleting any profiles and databases.
  2. Obtain a model that got here sooner than Thunderbird 78.
  3. Set up the downloaded model.

Your accounts ought to seem in Thunderbird after launching. If you happen to deleted Thunderbird along with the database recordsdata, merely log into your accounts once more.

5. Contact Your Web Service Supplier (ISP)

On particular ports, equivalent to port 25, few ISPs have a tendency to dam your outgoing emails. If you happen to can’t ship emails, then switching to a different port is really helpful.

You can even contact your ISP for any additional assist. For instance, if you happen to use Gmail, verify the Google Dashboard for any standing updates, in case it experiences downtime.

You’re Unable to Delete Messages

If you happen to can’t delete messages in Thunderbird, it could be attributable to a corrupted trash folder. Additionally, generally Thunderbird might freeze when deleting messages – on this case, strive relaunching the app.   

How one can repair

The easy resolution is to create a brand new trash folder after deleting the previous corrupted one. Comply with these steps to resolve the difficulty:

  1. Entry the troubleshooting info for the Profile Folder from the Assist part of the menu button.
  2. Click on on the Open Folder possibility from the Software Fundamentals part.
  3. Now shut the Thunderbird app.
  4. Go to your file supervisor and open the Mail (or ImapMail) folder per your affected account sort (POP or IMAP).
  5. Bear in mind to open the folder with an incoming mail server title like or
  6. Choose the Trash.msf and Trash recordsdata after which delete them. These recordsdata could also be named Deleted or Bin in some accounts.  
  7. As a last step, Restart the Thunderbird app in your system.

That’s it! The trash folder will likely be renewed, and it is possible for you to to simply delete your mail messages.

Thunderbird Freezes or Works Slowly

Customers might face Mozilla Thunderbird freezing, not responding, crashing, or hanging attributable to configurations or different systematic points. These points may be rapidly resolved within the following methods.

1. Replace Thunderbird

Very often, an outdated Thunderbird model causes points, and Thunderbird might freeze on Home windows 10. At the beginning, customers can repair the freezing or sluggish working points by updating Thunderbird. Comply with the steps listed beneath:

  1. Run the Thunderbird software.
  2. Go to the Assist menu.
  3. Select the About Thunderbird possibility.
  4. The software program routinely checks for any updates after a window opens.
  5. Choose Restart Thunderbird to replace as soon as updates are prepared to put in.
2. Try Running from Safe Mode
2. Strive Working from Protected Mode

You should use Protected Mode to troubleshoot points and reset settings. To launch it:

  1. Press the Alt (Choice) key and click on on the Thunderbird icon to launch it.
  2. If it’s already working, you’ll be able to swap to Protected Mode by choosing “Restart with Add-ons disabled…” within the Assist menu.
When the Safe Mode dialog appears, click on &ldquo
  1. When the Protected Mode dialog seems, click on on “Proceed in Protected Mode.”
3. Disable Add-ons
3. Disable Add-ons

You can even repair the difficulty by disabling the add-ons from Protected Mode. Do the identical actions as within the earlier step, however within the dialog, verify “Disable all add-ons” and press the “Make Adjustments and Restart” button.

4. Reinstall Thunderbird

In case your Thunderbird set up is corrupted, then Thunderbird points might happen. No want to fret. This may be simply mounted normally by reinstalling the Thunderbird software.

Do not forget that particular registry entries or recordsdata may be left behind by purposes regardless of uninstalling. These recordsdata could cause some future points, so it’s suggested to take away them as you encounter them.

5. Examine E-mail Configurations
  1. Go to the Instruments menu and choose the Account Settings possibility.
  2. You can even choose Account Settings from the applying menu.
  3. As soon as within the Account Settings, select the Server Settings from the left pane.
  4. Guarantee that you’ve got appropriate Thunderbird login info in the fitting pane, and that ought to do the trick.

IMAP Server Error Message

Thunderbird IMAP issues often happen as a result of configuration of the IMAP server (equivalent to Courier-IMAP), which can be configured to solely permit a sure variety of connections per IP tackle. 

1. Cut back the Variety of Connections

An IMAP server error may be rapidly resolved by lowering the variety of connections. To take action:

  1. Choose the Instruments possibility from the menu after which select Account Settings.
  2. Underneath the suitable account, choose the Server Settings.
  3. Click on on the Superior button.
  4. As soon as Configuration Dialog pops up, change the utmost variety of server connections to cache worth to a few or much less.
Update Thunderbird
Replace Thunderbird

Upgrading your Thunderbird to a 68.3.0 model or increased ought to repair the error by itself.


Thunderbird’s muscle tissues produced much less fatigue toxins than the muscle tissues of extraordinary people. He may exert himself at peak capability for a number of hours earlier than fatigue started to impair him. Superhuman power and will carry roughly 2 tons below optimum situations. His muscle tissue was thrice as dense as that of a traditional human being’s and was distributed in such a means as to offer Thunderbird large shoulders, arms, and thighs. His pores and skin was a number of occasions as dense as that of a traditional human being’s and included an extra layer of leathery dermis. Hus lungs had been outsized, and his respiratory system was developed in such a means as to permit him most wind and endurance with a minimal of oxygen consumption. These options made Thunderbird a pure outside fighter and athlete. Additionally he was considerably extra immune to bodily harm than an extraordinary human as a result of density of his pores and skin and muscle tissue. Not invulnerable, he was able to withstanding influence forces and blunt trauma that may have severely crippled or killed an extraordinary human with solely gentle to reasonable discomfort. Thunderbird was additionally a really expert tracker.