Fix Firefox inline math caret handling

mrtcode · mrtcode · commit 107ab75c3247 · 2026-03-18T11:58:51.000Z
Fixes https://forums.zotero.org/discussion/126002/cannot-input-any-character-in-the-last-position-of-a-maths-equation-in-a-note Fixes https://forums.zotero.org/discussion/130400/built-in-note-editor-seems-crashed-when-try-to-delete-the-last-charactor-in-math-inline-expression
diff --git a/src/stylesheets/components/core/_prosemirror-math.scss b/src/stylesheets/components/core/_prosemirror-math.scss
@@ -49,7 +49,8 @@ math-inline .math-render {
 }
 
 math-inline .math-src .ProseMirror {
-	display: inline;
+	/* Keep Firefox from dropping the caret out of inline math at the end */
+	display: inline-block;
 	/* Necessary to fix FireFox bug with contenteditable, https://bugzilla.mozilla.org/show_bug.cgi?id=1252108 */
 	border-right: 1px solid transparent;
 	border-left: 1px solid transparent;

Original file line number	Diff line number	Diff line change
`@@ -49,7 +49,8 @@ math-inline .math-render {`
`49`	`49`	`}`
`50`	`50`
`51`	`51`	`math-inline .math-src .ProseMirror {`
`52`		`- display: inline;`
	`52`	`+ /* Keep Firefox from dropping the caret out of inline math at the end */`
	`53`	`+ display: inline-block;`
`53`	`54`	`/* Necessary to fix FireFox bug with contenteditable, https://bugzilla.mozilla.org/show_bug.cgi?id=1252108 */`
`54`	`55`	`border-right: 1px solid transparent;`
`55`	`56`	`border-left: 1px solid transparent;`