Bugs, bugs, bugs, ...
Let's start with the bad news. At time of writing, 20th August 2021, Bugzilla shows 14.312 open "tickets" in Thunderbird (components Thunderbird: 7828, Mailnews Core: 4257, Calendar: 1996, Chat Core: 231, Bugzilla can't retrieve more than 10.000 bugs, you need to query separately), not counting the bugs in the Mozilla platform code that affect Thunderbird (like in the Editor, Spellchecker, Serialiser, etc.). Not all "tickets" are bugs, of course, but a fair portion is. Chances are that you are experiencing one of those.
We are here to help
So what do to? In general, we're here to help, but as you will understand, our small team cannot fix all 10.000+ bugs given that some of them are two decades old and the Thunderbird team which has many more resources than we do haven't addressed those bugs.
As a first step, we suggest to install the current/matching ESR version of Thunderbird in parallel and see whether the issue exists there. If so, it's a good idea to check whether a bug has been reported already at Bugzilla. If the issue exists in Thunderbird, regardless of whether it has been reported at or not, you can contact us and we can check how hard it would be to fix the issue. We may also advise you to file a bug in Bugzilla, so we can offer our fix to upstream Thunderbird, or we may chose to file the issue ourselves. Generally the idea of Betterbird is that our team tries to provide users with a better experience and that involves fixing long-standing and annoying bugs that somehow the Thunderbird team is not addressing.
If the issue only exists in Betterbird, please contact us immediately and we will endeavour to get a fix to you as soon as possible. Or you can file an issue at our Github repository.
In any case, common sense bug reporting rules apply, so something that's not reproducible won't be fixed and the user needs to cooperate during the debugging phase by following our suggestions and providing feedback or debugging information.
There is also a very active German forum where you can join the discussion.
How to switch between Thunderbird and Betterbird?
Betterbird is designed to be 100% compatible with Thunderbird of the same version. For example at time of writing you can switch between Betterbird 102.2.0-bb14 and Thunderbird 102.2.0 without problem. Betterbird uses Thunderbird's profile directory and contained profiles for easy switching:
- Windows: C:\Users\<user>\AppData\Roaming\Thunderbird\
- Linux: ~/.thunderbird/
- Mac: /Users/<user>/Library/Thunderbird/
If Betterbird doesn't already detect your Thunderbird profile, start Betterbird with the -p option which will launch the profile manager. You can select your regular profile there. Another option is to view all profiles via Help > More Troubleshooting Information. Click on the about:profiles link which will take you to a tab where you can select a different default profile.
Things to keep in mind:
- When the multi-line view has been used in Betterbird, you need to switch the Subject column on again in the column picker before switching back to Thunderbird.
- Thunderbird does not recognise complex search terms defined in Betterbird.
- Thunderbird does not recognise search terms containing regular expression matches defined in Betterbird.
- Linux-only: When starting Thunderbird on a profile where a movemail account was set up in Betterbird, this account setup will be lost; however, the underlying mail data is preserved and can be recovered by creating a new movemail account and pointing the storage location to the pre-existing OS folder.
What's the story with the portable version?
Neither Thunderbird nor Betterbird are designed for portable use. The profile contains files which record native absolute path names, as soon as you move the profile, things break. The Thunderbird team have been wise not to offer a portable version and they are not connected to all the portable stuff that floats around, PortableApps.com being the most sophisticated (but there are others). However, they don't mitigate the native absolute path issue and their portable also creates these files: C:\Users\<user>\AppData\Local\Thunderbird and C:\Users\<user>\AppData\Roaming\Thunderbird.
By popular demand, Betterbird ships officially as a portable version, but it has the same issues mentioned above. We've written our own simple launcher program, BetterbirdLauncher.exe whose source is published. As of January 2023 in version 102.7.1-bb29 the launcher program can be registered as default mail application using, for example, PortableRegistrator". When registered, mailto: links will open in the portable Betterbird.
A word about moving the portable profile, the initial purpose of portable applications: When moving the profile, it is possible that add-ons don't work any more. In that case, delete the add-on startup cache in profile\addonStartup.json.lz4 and set preference extensions.startupScanScopes to 5 (or 7 when using light weight themes) in the Config Editor.
Version 91 only: What's the story with the header pane buttons?
By popular demand, Betterbird has restored the header pane button customisation only in Betterbird 91. We've received reports that all header pane buttons had disappeared (like "configured away") for a few users. To restore the buttons, start Betterbird in so-called Troubleshoot Mode (Help > Troubleshoot Mode) and when Betterbird restarts, select "Reset toolbars and controls".
Also note that the add-on "Message Header Toolbar Customize" is not working in Betterbird 91.
What's the story with complex search terms in filters, folder search and virtual/search folders (from 91.9.0-bb31)?
By popular demand, Betterbird implemented complex search terms starting in Betterbird 91.9.0-bb31. To implement that, we had to change the syntax of the content of the msgFilterRules.dat file that stores the rules a little bit while staying 100% compatible with Thunderbird as long as no complex search terms are used. In other words: If you only use simple search, you can switch between Thunderbird and Betterbird with no problem. If you use complex search terms, opening the Message Filter panel (Tools > Message Filters) will damage the complex filters set up in Betterbird. Just starting Thunderbird won't do any damage. If you set up search folders using complex search terms, they won't work in Thunderbird.
Version 91 only: XML Parsing Error: undefined entity. What's going on?
This problem should no longer happen, since Betterbird 102 disables incompatible Thunderbird language packs. If in version 91 you receive a XML Parsing Error: undefined entity error (in German: XML-Verarbeitungsfehler: Nicht definierte Entität) when your start Betterbird, you have a Thunderbird language pack installed. All Thunderbird language packs are incompatible with Betterbird. Please remove them. You can either switch to Thunderbird and remove them via Tools > Add-ons and Themes, then click on the Languages tab. Or you can remove them directly from the extensions folder in your profile. The filename is for the form langpack-NNNN@thunderbird.mozilla.org.xpi. German users can follow this article or this article.
Is Betterbird a virus?
We have seen cases where Windows Security makes you believe that Betterbird contains malicious code, we got a report for "Trojan:Script/Wacatac.B!ml" with the wording "This program is dangerous and executes commands from an attacker". Scary stuff. We've since started self-signing all executables, you can download our certificate which you need to install into "Trusted Root Certification Authorities" (check with certmgr.msc). The result looks like this. We've also excluded the Betterbird program directory and process from further scans.
Betterbird doesn't contain any more malicious code than the Thunderbird or Mozilla codebase, but we admit that we haven't inspected the millions of lines of upstream code. The binaries we distribute are built from open source code and you can build the package yourself using the instruction on the Github repository. You can also submit alleged malicious code to an online virus scanner like VirusTotal or Jotti.
One word of caution: E-Mail in general is dangerous. Like all written communication, it doesn't convey any facial expression, tone of voice and irony is frequently misunderstood. So use e-mail wisely and don't pick a fight! Also, e-mail is dangerous when sending the wrong stuff to the wrong people. Please check twice to whom you're sending the message before clicking "Send". We speak from experience :-( - If you're transmitting confidential information, you should consider setting up OpenPGP or using p≡p
Lastly and humorously: Some consider the Windows operating system to be a boot sector virus. We hope Betterbird will spread like a virus, and we need you to make the project a success.