Steps how to reproduce with installed unofficial (by wg9s) De SeaMonkey 2.53.6 beta 1 pre Mozilla/5.0 (NT 6.1; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0 Build 20201115220004 (Default User Profile, Default Classic Theme) on German WIN7 64bit

1. Browser → F1
   » Help appears
2. Type search string "Tastenkombinationen" → Click first hit "Allgemeine Tastenkombinationen"
   » Related Help appears
3. Check for Typos !

I found:

oderr →
oder (multiple times in text)

or →
oder (multiple times in Text)

Space →
Leertaste (but „Space“ also might be rather common for German users?)

Editiern →
Editieren

nächten →
nächsten

auswälen →
auswählen (multiple times)

Nästes Wort →
Nächstes Wort

Additional Info:

a) Contents: I can't confirm that Ctrl+K brings focus to search field

(In reply to Rainer Bielefeld from comment #0)

Steps how to reproduce with installed unofficial (by wg9s) De SeaMonkey 2.53.6 beta 1 pre Mozilla/5.0 (NT 6.1; Win64; x64; rv:60.0) Gecko/20100101 Firefox/60.0 Build 20201115220004 (Default User Profile, Default Classic Theme) on German WIN7 64bit

1. Browser → F1
   » Help appears
2. Type search string "Tastenkombinationen" → Click first hit "Allgemeine Tastenkombinationen"
   » Related Help appears
3. Check for Typos !

I found:

oderr →
oder (multiple times in text)

or →
oder (multiple times in Text)

Space →
Leertaste (but „Space“ also might be rather common for German users?)

Editiern →
Editieren

nächten →
nächsten

auswälen →
auswählen (multiple times)

Nästes Wort →
Nächstes Wort

Additional Info:

a) Contents: I can't confirm that Ctrl+K brings focus to search field

Hello , I would like to work on this bug. This will be my very first issue, can you please guide me how to follow it to reach the bug.
Thank You.

I sent some hints by PM

Most still REPRODUCIBLE with installation of unofficial (by wg9s) De SeaMonkey 2.53.14 beta 1 pre Mozilla/5.0 (NT 6.1; Win64; x64; rv:68.0) Gecko/20100101 Firefox/68.0 Build 20220801210005 (Same with normal user Profile and newly created User Profile Default Classic Theme) on German WIN10 64bit

Still unconfirmed, but there is no doubt ...
so I take this one

oderr →
oder (multiple times in text)
has become fixed in Between. Rest still does exist.

I will add a patch next days