diff --git a/app/javascript/mastodon/components/error_boundary.js b/app/javascript/mastodon/components/error_boundary.js
index 4e1c882e2..ca3012276 100644
--- a/app/javascript/mastodon/components/error_boundary.js
+++ b/app/javascript/mastodon/components/error_boundary.js
@@ -2,6 +2,7 @@ import React from 'react';
 import PropTypes from 'prop-types';
 import { FormattedMessage } from 'react-intl';
 import { version, source_url } from 'mastodon/initial_state';
+import StackTrace from 'stacktrace-js';
 
 export default class ErrorBoundary extends React.PureComponent {
 
@@ -11,24 +12,42 @@ export default class ErrorBoundary extends React.PureComponent {
 
   state = {
     hasError: false,
+    errorMessage: undefined,
     stackTrace: undefined,
+    mappedStackTrace: undefined,
     componentStack: undefined,
   };
 
   componentDidCatch (error, info) {
     this.setState({
       hasError: true,
+      errorMessage: error.toString(),
       stackTrace: error.stack,
       componentStack: info && info.componentStack,
-      copied: false,
+      mappedStackTrace: undefined,
+    });
+
+    StackTrace.fromError(error).then((stackframes) => {
+      this.setState({
+        mappedStackTrace: stackframes.map((sf) => sf.toString()).join('\n'),
+      });
+    }).catch(() => {
+      this.setState({
+        mappedStackTrace: undefined,
+      });
     });
   }
 
   handleCopyStackTrace = () => {
-    const { stackTrace } = this.state;
+    const { errorMessage, stackTrace, mappedStackTrace } = this.state;
     const textarea = document.createElement('textarea');
 
-    textarea.textContent    = stackTrace;
+    let contents = [errorMessage, stackTrace];
+    if (mappedStackTrace) {
+      contents.push(mappedStackTrace);
+    }
+
+    textarea.textContent    = contents.join('\n\n\n');
     textarea.style.position = 'fixed';
 
     document.body.appendChild(textarea);
diff --git a/package.json b/package.json
index d856051c1..04c05961f 100644
--- a/package.json
+++ b/package.json
@@ -153,6 +153,7 @@
     "rimraf": "^3.0.2",
     "sass": "^1.25.0",
     "sass-loader": "^8.0.2",
+    "stacktrace-js": "^2.0.2",
     "stringz": "^2.0.0",
     "substring-trie": "^1.0.2",
     "terser-webpack-plugin": "^2.3.5",
diff --git a/yarn.lock b/yarn.lock
index 98c146ab8..92495c5ed 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -3694,6 +3694,13 @@ error-ex@^1.2.0, error-ex@^1.3.1:
   dependencies:
     is-arrayish "^0.2.1"
 
+error-stack-parser@^2.0.6:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/error-stack-parser/-/error-stack-parser-2.0.6.tgz#5a99a707bd7a4c58a797902d48d82803ede6aad8"
+  integrity sha512-d51brTeqC+BHlwF0BhPtcYgF5nlzf9ZZ0ZIUQNZpc9ZB9qw5IJ2diTrBY9jlCJkTLITYPjmiX6OWCwH+fuyNgQ==
+  dependencies:
+    stackframe "^1.1.1"
+
 es-abstract@^1.13.0, es-abstract@^1.15.0, es-abstract@^1.17.0, es-abstract@^1.17.0-next.1, es-abstract@^1.5.1:
   version "1.17.0"
   resolved "https://registry.yarnpkg.com/es-abstract/-/es-abstract-1.17.0.tgz#f42a517d0036a5591dbb2c463591dc8bb50309b1"
@@ -9723,6 +9730,11 @@ source-list-map@^2.0.0:
   resolved "https://registry.yarnpkg.com/source-list-map/-/source-list-map-2.0.1.tgz#3993bd873bfc48479cca9ea3a547835c7c154b34"
   integrity sha512-qnQ7gVMxGNxsiL4lEuJwe/To8UnK7fAnmbGEEH8RpLouuKbeEm0lhbQVFIrNSuB+G7tVrAlVsZgETT5nljf+Iw==
 
+source-map@0.5.6:
+  version "0.5.6"
+  resolved "https://registry.yarnpkg.com/source-map/-/source-map-0.5.6.tgz#75ce38f52bf0733c5a7f0c118d81334a2bb5f412"
+  integrity sha1-dc449SvwczxafwwRjYEzSiu19BI=
+
 source-map-resolve@^0.5.0:
   version "0.5.2"
   resolved "https://registry.yarnpkg.com/source-map-resolve/-/source-map-resolve-0.5.2.tgz#72e2cc34095543e43b2c62b2c4c10d4a9054f259"
@@ -9868,11 +9880,40 @@ stable@~0.1.6:
   resolved "https://registry.yarnpkg.com/stable/-/stable-0.1.8.tgz#836eb3c8382fe2936feaf544631017ce7d47a3cf"
   integrity sha512-ji9qxRnOVfcuLDySj9qzhGSEFVobyt1kIOSkj1qZzYLzq7Tos/oUUWvotUPQLlrsidqsK6tBH89Bc9kL5zHA6w==
 
+stack-generator@^2.0.5:
+  version "2.0.5"
+  resolved "https://registry.yarnpkg.com/stack-generator/-/stack-generator-2.0.5.tgz#fb00e5b4ee97de603e0773ea78ce944d81596c36"
+  integrity sha512-/t1ebrbHkrLrDuNMdeAcsvynWgoH/i4o8EGGfX7dEYDoTXOYVAkEpFdtshlvabzc6JlJ8Kf9YdFEoz7JkzGN9Q==
+  dependencies:
+    stackframe "^1.1.1"
+
 stack-utils@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/stack-utils/-/stack-utils-1.0.2.tgz#33eba3897788558bebfc2db059dc158ec36cebb8"
   integrity sha512-MTX+MeG5U994cazkjd/9KNAapsHnibjMLnfXodlkXw76JEea0UiNzrqidzo1emMwk7w5Qhc9jd4Bn9TBb1MFwA==
 
+stackframe@^1.1.1:
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/stackframe/-/stackframe-1.1.1.tgz#ffef0a3318b1b60c3b58564989aca5660729ec71"
+  integrity sha512-0PlYhdKh6AfFxRyK/v+6/k+/mMfyiEBbTM5L94D0ZytQnJ166wuwoTYLHFWGbs2dpA8Rgq763KGWmN1EQEYHRQ==
+
+stacktrace-gps@^3.0.4:
+  version "3.0.4"
+  resolved "https://registry.yarnpkg.com/stacktrace-gps/-/stacktrace-gps-3.0.4.tgz#7688dc2fc09ffb3a13165ebe0dbcaf41bcf0c69a"
+  integrity sha512-qIr8x41yZVSldqdqe6jciXEaSCKw1U8XTXpjDuy0ki/apyTn/r3w9hDAAQOhZdxvsC93H+WwwEu5cq5VemzYeg==
+  dependencies:
+    source-map "0.5.6"
+    stackframe "^1.1.1"
+
+stacktrace-js@^2.0.2:
+  version "2.0.2"
+  resolved "https://registry.yarnpkg.com/stacktrace-js/-/stacktrace-js-2.0.2.tgz#4ca93ea9f494752d55709a081d400fdaebee897b"
+  integrity sha512-Je5vBeY4S1r/RnLydLl0TBTi3F2qdfWmYsGvtfZgEI+SCprPppaIhQf5nGcal4gI4cGpCV/duLcAzT1np6sQqg==
+  dependencies:
+    error-stack-parser "^2.0.6"
+    stack-generator "^2.0.5"
+    stacktrace-gps "^3.0.4"
+
 static-extend@^0.1.1:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/static-extend/-/static-extend-0.1.2.tgz#60809c39cbff55337226fd5e0b520f341f1fb5c6"