--- a/devtools/client/shared/components/reps/reps.css
+++ b/devtools/client/shared/components/reps/reps.css
@@ -73,22 +73,16 @@
 }
 
 .objectBox-stackTrace-grid {
   display: inline-grid;
   grid-template-columns: auto auto;
   margin-top: 3px;
 }
 
-.objectBox-stackTrace-fn::before {
-  content: "\3BB"; /* The "lambda" symbol */
-  display: inline-block;
-  margin: 0 0.3em;
-}
-
 .objectBox-stackTrace-fn {
   color: var(--console-output-color);
   padding-inline-start: 17px;
   white-space: nowrap;
   overflow: hidden;
   text-overflow: ellipsis;
   margin-inline-end: 5px;
 }

--- a/devtools/client/themes/components-frame.css
+++ b/devtools/client/themes/components-frame.css
@@ -55,22 +55,16 @@
   color: var(--theme-comment);
 }
 
 .frame-link .frame-link-function-display-name {
   margin-inline-end: 5px;
   color: var(--console-output-color, currentColor);
 }
 
-.frame-link .frame-link-function-display-name::before {
-  content: "\3BB"; /* The "lambda" symbol */
-  display: inline-block;
-  margin: 0 0.3em;
-}
-
 .frame-link .frame-link-line {
   color: var(--frame-link-line-color);
 }
 
 .focused .frame-link .frame-link-source,
 .focused .frame-link .frame-link-line,
 .focused .frame-link .frame-link-host {
   color: var(--theme-selection-color);