diff --git a/extensions/react-widget/src/components/ComposerControls.tsx b/extensions/react-widget/src/components/ComposerControls.tsx
index fb92fa30..22ff535b 100644
--- a/extensions/react-widget/src/components/ComposerControls.tsx
+++ b/extensions/react-widget/src/components/ComposerControls.tsx
@@ -525,6 +525,9 @@ export const VoiceWaveform = ({
     const context = canvas?.getContext('2d');
     if (!canvas || !context) return;
 
+    // Safari exposed webkitSpeechRecognition from 14.1 but roundRect only
+    // from 16.4, so dictation can run where the rounded path throws.
+    const canRoundRect = typeof context.roundRect === 'function';
     const levels = new Array<number>(WAVEFORM_BARS).fill(0);
     // Bare `Uint8Array` widens to ArrayBufferLike, which the analyser
     // signature rejects.
@@ -573,9 +576,13 @@ export const VoiceWaveform = ({
         const x = index * slot + (slot - barWidth) / 2;
         const y = (height - barHeight) / 2;
         context.globalAlpha = 0.35 + 0.65 * (index / WAVEFORM_BARS);
-        context.beginPath();
-        context.roundRect(x, y, barWidth, barHeight, radius);
-        context.fill();
+        if (canRoundRect) {
+          context.beginPath();
+          context.roundRect(x, y, barWidth, barHeight, radius);
+          context.fill();
+        } else {
+          context.fillRect(x, y, barWidth, barHeight);
+        }
       }
       context.globalAlpha = 1;
     };
diff --git a/extensions/react-widget/src/components/DocsGPTWidget.tsx b/extensions/react-widget/src/components/DocsGPTWidget.tsx
index a6a1bc97..7af67307 100644
--- a/extensions/react-widget/src/components/DocsGPTWidget.tsx
+++ b/extensions/react-widget/src/components/DocsGPTWidget.tsx
@@ -1208,7 +1208,7 @@ const SourcesList = styled.div`
   gap: 6px;
 `;
 
-const SourceChip = styled.span`
+const SourceChip = styled.a`
   color: ${(props) => props.theme.secondary.text};
   background: ${(props) => props.theme.secondary.bg};
   border: 1px solid ${(props) => props.theme.hairline};
@@ -1219,6 +1219,21 @@ const SourceChip = styled.span`
   align-items: center;
   max-width: min(100%, 220px);
   line-height: 1.6;
+  text-decoration: none;
+  cursor: pointer;
+  transition:
+    border-color 0.15s ease,
+    color 0.15s ease;
+
+  &:hover {
+    color: ${(props) => props.theme.primary.text};
+    border-color: ${(props) => props.theme.accent!.base};
+  }
+
+  &:focus-visible {
+    outline: 2px solid ${(props) => props.theme.accent!.base};
+    outline-offset: 2px;
+  }
 `;
 const SourceLabel = styled.span`
   min-width: 0;
@@ -1255,7 +1270,13 @@ const SourcesComponent = ({
   return (
     <SourcesList>
       {visibleSources.map((source, idx) => (
-        <SourceChip key={idx} title={source.title}>
+        <SourceChip
+          key={idx}
+          href={source.source}
+          target="_blank"
+          rel="noopener noreferrer"
+          title={source.title}
+        >
           <SourceLabel>{source.title}</SourceLabel>
         </SourceChip>
       ))}
@@ -1739,7 +1760,10 @@ export const WidgetCore = ({
   const isDictating =
     recordingState === 'recording' || recordingState === 'transcribing';
   const canSubmit =
-    prompt.trim().length > 0 && !sendBlockedReason && !isDictating;
+    prompt.trim().length > 0 &&
+    !sendBlockedReason &&
+    !isDictating &&
+    status !== 'loading';
 
   const submitPrompt = async () => {
     if (!canSubmit) return;
diff --git a/extensions/react-widget/src/requests/attachmentsApi.ts b/extensions/react-widget/src/requests/attachmentsApi.ts
index d9762bf9..13117d11 100644
--- a/extensions/react-widget/src/requests/attachmentsApi.ts
+++ b/extensions/react-widget/src/requests/attachmentsApi.ts
@@ -5,6 +5,8 @@
  * response carries. Auth is the agent key as `api_key` in the multipart body.
  */
 
+const UPLOAD_TIMEOUT_MS = 2 * 60 * 1000;
+
 interface UploadAttachmentOptions {
   file: File;
   apiKey: string;
@@ -91,7 +93,13 @@ export function uploadAttachment({
       reject(new DOMException('Upload aborted', 'AbortError'));
     };
 
+    xhr.ontimeout = () => {
+      signal?.removeEventListener('abort', onAbort);
+      reject(new Error('Upload timed out.'));
+    };
+
     xhr.open('POST', `${apiHost}/api/store_attachment`);
+    xhr.timeout = UPLOAD_TIMEOUT_MS;
     xhr.send(formData);
   });
 }