User Agent: Mozilla/5.0 (Windows NT 5.1; rv:32.0) Gecko/20100101 Firefox/32.0 SeaMonkey/2.29 Build ID: 20140904220358 Steps to reproduce: caret disappears in text containing mathematical formulas Actual results: in Composer add the text 'hello' with Insert, Mathematical formula... insert '\sqrt{x_1}' add the text 'hoi' moving the caret over 'hello' in the editor, the caret shows moving the caret over \sqrt{x_1}, the caret shows entering the caret in 'hoi', the caret disappears entering from the other side gives also wrong results Expected results: the caret should stay visible when the caret enters the text 'hoi'

REPRODUCIBLE with unofficial (from <http://seamonkey.callek.net/contrib/>) en-US SeaMonkey 2.44a1 Mozilla/5.0 (Windows NT 6.1; x64; rv:47.0) Gecko/20100101 Firefox/47.0 Build 20160208090255 (Default Classic Theme) on German WIN7 64bit: 0. download sample document → Launch Composer from Browser via composer icon in Status Bar 1. Menu 'File → Open → sample document' » caret flashes at the right end of contents 2. Mouxe click into "xxx" » caret flashes somewhere in "xxx" 3. [arrowright] on key board several times to move caret to the right » every key press moves caret 1 character to the right, also in formula Bug: last visible caret position is right from "1", next [arrowright] will make caret invisible.

There are some additional strange move-carret-effects, I will do additional research later. Also REPRODUCIBLE with English SeaMonkey 2.44a1 (X11; Linux x86_64; rv:47.0) Gecko/20100101 Firefox/47.0 Build 20160208023510 (Default Theme) on VirtualBox Ubuntu 14.04 LTS

Possibly related: "Bug 987028 - Cursor keys in not visible inside nsMathMLChar operators" "Bug 565185 - Caret dissapears in a contenteditable=true div with nested mathml formula in it"

My test results with older SeaMonkey Versions (WINDOWS) and sample document a) 2.33.1: Insert Math AVAILABLE. LaTeX formula in sample document shown correctly Caret problem DOES EXIST b) 2.26.1: No Insert Math available. LaTeX formula in sample document shown correctly. Caret problem DOES EXIST c) 2.16: No Insert Math available. LaTeX formula in sample document shown correctly No caret problem d) 2.5: No Insert Math available. LaTeX formula in sample document shown correctly. No caret problem e)2.0: No Insert Math available. Latex formula in sample document NOT shown correctly, LaTeX source code shown. No caret problem (of course) f) Conclusion (b,c): Problem appeared somewhen between 2.16 and 2.26.1 g) Conclusion (a,b): Problem is not related to Insert Math Dialog

h) also REPRODUCIBLE with TB 47.0a1 (2016-02-09) i) Caret does ont really vanish, but becomes invisible a it's place: In step 3 immediately after the caret becomes invisible type "qwertzuiop" with a rightarrow after each charakter. source snippet before: <annotation encoding="TeX">\sqrt{x_1}</annotation> after: <annotation encoding="TeX">qwertzuiop\sqrt{x_1}</annotation> There are lots of similar problems in composer and also in browser with cursor navigation (F7), I haven't a clue how to find the best entrance for fixing this because it's not clear whether thy really have the same roots (Bug 565185 already was in rv:1.9.3a5pre) Gecko/20100511 Minefield/3.7a5pre ...) NEW for now because other