SeaMonkey Internet Suite

Unofficial News in English language


SeaMonkey 2.53.1 Beta 1

Has been released.

I can recommend that version, I have been using 2.53 for a long time without bigger problems. But you should keep in mind that there will be no way back for your existing User Profile after you will have used it with 2.53.1.

Additionally to the official Release Notes here you find some more information concerning changes with SeaMonkey 2.53.1

You need a Bugzilla-Account for the queries here in the blogpost. All queries without any liability, because (not only) correct use of TARGET MILESTONE is controversial.

Mistakes in official Release Notes

I don’t know.

New features

I do not know which Firefox56 – features made it into  SeaMonkey 2.53.1


  • Bugs in SeaMonkey  what have been fixed for SeaMonkey 2.53

Known issues:

See official release notes and this query.

Possible new bugs (“Regressions“)

You can find workarounds for new problems in the Wiki

Download from here!


Thanks to all who contributed to the project and helped to make possible this release!





SeaMonkey E-Mail CRASHes

Yesterday morning my

installation of unofficial (by wg9s) De SeaMonkey 2.53.2 (NT 6.1; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0 Build 20191230130008 {Milestone=60.3.2 | SourceStamp=f3720549528fd4e297a4b9f285acd2fe1d0a6938} (Default Classic Theme) on German WIN7 64bit

lost ability to open email client. day be fore everything worked fine, next morning always when try to launch email client SM becomes unresponsible, ‘CRASH after few minutes.

Here the Crash Reports:

bp-862acdf2-c2d8-42c7-abb2-56dd80200116   16.01.2020   06:46

bp-05498541-7e75-4ac6-9445-088090200115   15.01.2020   22:49

bp-afedec4a-1f30-42da-8643-7a2580200115   15.01.2020   22:46

bp-79e8410f-0e89-4c2c-a544-646280200115   15.01.2020   20:57

bp-e3a8d210-43dc-43d8-b8e9-d47910200115   15.01.2020   20:50

bp-f7051106-7e7e-4493-9dc7-1b6d80200115   15.01.2020   17:04

bp-1ce9edc6-0b3b-4d79-9273-2c9730200115   15.01.2020   16:52

bp-639765c2-179d-4fdc-b34f-4f7410200115   15.01.2020   16:16

bp-f50c33d8-b208-48eb-b0c0-0a1bd0200115   15.01.2020   16:00

I gambled around a little, nothing helps.

I’m afraid I will nave to Create a new profile and import old contents step by step.

Or do you know a trick I should try to revive mail in my existing profile?







Bad thing I had to learn: I did Backups of my profile with 7z. But if I replace the profile in the rooming folder, the profile will not work. SM launches, but the complete Folder contents is dead, will not be recognized. May because I should have additionally added the Profile components from <C:\Users\user\AppData\Local\Mozilla\SeaMonkey\Profiles>? I don’t think so, I additionally had done an unzipped copy of my Profile, that works (except mail …), I have access to bookmarks, passwords and so on.


Unofficial SeaMonkey 2.53.2 beta 1 pre by user wg9s

This blog post in German language User wg9s offers several current SeaMonkey builds from latest source for WINDOWS, MAC and Linux.

SeaMonkey 2.53.2 is the new successor of 2.53.1, German version works fine for me on WIN, English Version and other OS not (yet) Tested by me.

Reports on Expereience are welcome, but please be aware that you use those builds on your own risk. I recommend to create a backup of your user profile before you start testing those builds.




1 Comment

PDF Viewer PDF.JS for SeaMonkey 2.53.1

PDF Viewer for SeaMonkey 2.1.288 does not work correctly with SeaMonkey 2.53 and 2.53.1 (By WG9S): endless idling in Browser-TAB until you click Stop Loading Icon, also problems when open PDF attachment from Mail.

There is a first experimental fixed version (by FRG) here, you can use it for tests on your own risk. Loading PDFs in browser window now works fine, loading PDF attachment from email still needs a refresh (browser tab contents) before PDF becomes shown.

More details and discussion on German Blog.