diff --git a/src/features/pr-review/PRDescription.svelte b/src/features/pr-review/PRDescription.svelte
index 718c8d6..77831ba 100644
--- a/src/features/pr-review/PRDescription.svelte
+++ b/src/features/pr-review/PRDescription.svelte
@@ -55,16 +55,12 @@
 
   const cleanText = $derived.by(() => stripMarkdown(displayText));
   const renderedMarkdown = $derived.by(() => {
-    // Always render markdown when expanded, or when there's no toggle needed
-    if ((expanded && shouldShowToggle) || !shouldShowToggle) {
-      try {
-        return marked.parse(displayText);
-      } catch (error) {
-        console.error('Error rendering markdown:', error);
-        return displayText;
-      }
+    try {
+      return marked.parse(displayText);
+    } catch (error) {
+      console.error('Error rendering markdown:', error);
+      return displayText;
     }
-    return null;
   });
 
   // Check if the content has markdown formatting
@@ -84,13 +80,11 @@
 </script>
 
 <div class="mt-3">
-  {#if hasMarkdown && (renderedMarkdown || (!shouldShowToggle && !expanded))}
-    <!-- Render markdown when there's markdown content -->
+  {#if hasMarkdown}
     <div class="gh-markdown prose prose-sm max-w-none prose-invert">
       {@html renderedMarkdown}
     </div>
   {:else}
-    <!-- Show plain text when no markdown or in preview mode -->
     <div class="text-sm text-[#c9d1d9] whitespace-pre-line">
       {cleanText}
     </div>
diff --git a/src/features/pr-review/components/ReviewSubmissionSection.svelte b/src/features/pr-review/components/ReviewSubmissionSection.svelte
index af7f6c0..e65ba1e 100644
--- a/src/features/pr-review/components/ReviewSubmissionSection.svelte
+++ b/src/features/pr-review/components/ReviewSubmissionSection.svelte
@@ -52,11 +52,11 @@
   </div>
 
   <!-- Action buttons -->
-  <div class="flex items-center justify-end gap-2">
+  <div class="flex gap-2">
     <button
       onclick={() => onSubmitReview && onSubmitReview('REQUEST_CHANGES')}
       disabled={!canSubmit || !canRequestChanges}
-      class="px-3 py-2 text-sm bg-[#da3633] text-white rounded font-medium hover:bg-[#f85149] disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
+      class="flex-[2] px-3 py-2 text-sm bg-[#da3633] text-white rounded font-medium hover:bg-[#f85149] disabled:opacity-50 disabled:cursor-not-allowed transition-colors whitespace-nowrap"
       title={canRequestChanges ? 'Request changes' : 'Request changes requires an overall comment'}
     >
       Request changes
@@ -65,7 +65,7 @@
     <button
       onclick={() => onSubmitReview && onSubmitReview('COMMENT')}
       disabled={!canSubmit || !canComment}
-      class="px-3 py-2 text-sm bg-[#1f6feb] text-white rounded font-medium hover:bg-[#388bfd] disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
+      class="flex-1 px-3 py-2 text-sm bg-[#1f6feb] text-white rounded font-medium hover:bg-[#388bfd] disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
       title={canComment ? 'Comment' : 'Add an overall comment or inline comments to submit'}
     >
       Comment
@@ -74,7 +74,7 @@
     <button
       onclick={() => onSubmitReview && onSubmitReview('APPROVE')}
       disabled={!canSubmit}
-      class="px-3 py-2 text-sm bg-[#2ea043] text-white rounded font-medium hover:bg-[#3fb950] disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
+      class="flex-1 px-3 py-2 text-sm bg-[#2ea043] text-white rounded font-medium hover:bg-[#3fb950] disabled:opacity-50 disabled:cursor-not-allowed transition-colors"
       title="Approve"
     >
       Approve
diff --git a/src/features/pr-review/stores/pr-navigation.store.ts b/src/features/pr-review/stores/pr-navigation.store.ts
new file mode 100644
index 0000000..77610eb
--- /dev/null
+++ b/src/features/pr-review/stores/pr-navigation.store.ts
@@ -0,0 +1,73 @@
+import { derived, type Readable } from 'svelte/store';
+import { allPullRequests, pullRequestConfigs, getRepoKey } from '$shared/stores/repository-service';
+import type { PullRequest } from '$integrations/github';
+
+export interface PRNavigationEntry {
+  owner: string;
+  repo: string;
+  number: number;
+  title: string;
+}
+
+/**
+ * Derives a flat, ordered list of all PRs from the dashboard,
+ * maintaining the same order as displayed (configs order → PRs order within each repo).
+ */
+export const prNavigationList: Readable<PRNavigationEntry[]> = derived(
+  [pullRequestConfigs, allPullRequests],
+  ([$configs, $allPRs]) => {
+    const entries: PRNavigationEntry[] = [];
+    const configs = Array.isArray($configs) ? $configs : [];
+
+    for (const config of configs) {
+      const repoKey = getRepoKey(config);
+      const prs: PullRequest[] = $allPRs[repoKey] || [];
+      for (const pr of prs) {
+        entries.push({
+          owner: config.org,
+          repo: config.repo,
+          number: pr.number,
+          title: pr.title,
+        });
+      }
+    }
+
+    return entries;
+  }
+);
+
+/**
+ * Given the current PR identifiers, returns the previous and next PR navigation entries.
+ * Wraps around at the boundaries.
+ */
+export function getAdjacentPRs(
+  list: PRNavigationEntry[],
+  owner: string,
+  repo: string,
+  prNumber: number
+): { prev: PRNavigationEntry | null; next: PRNavigationEntry | null } {
+  if (list.length === 0) {
+    return { prev: null, next: null };
+  }
+
+  const currentIndex = list.findIndex(
+    (entry) => entry.owner === owner && entry.repo === repo && entry.number === prNumber
+  );
+
+  if (currentIndex === -1) {
+    return { prev: null, next: null };
+  }
+
+  // If there's only one PR, no navigation needed
+  if (list.length === 1) {
+    return { prev: null, next: null };
+  }
+
+  const prevIndex = (currentIndex - 1 + list.length) % list.length;
+  const nextIndex = (currentIndex + 1) % list.length;
+
+  return {
+    prev: list[prevIndex],
+    next: list[nextIndex],
+  };
+}
diff --git a/src/shared/navigation/Breadcrumb.svelte b/src/shared/navigation/Breadcrumb.svelte
index 7cb3c3b..79f6ca0 100644
--- a/src/shared/navigation/Breadcrumb.svelte
+++ b/src/shared/navigation/Breadcrumb.svelte
@@ -1,5 +1,7 @@
 <script lang="ts">
+  import { goto } from '$app/navigation';
   import { page } from '$app/state';
+  import { prNavigationList, getAdjacentPRs, type PRNavigationEntry } from '$features/pr-review/stores/pr-navigation.store';
   import { breadcrumbService, type BreadcrumbItem } from '../navigation/breadcrumb.service';
 
   // Generate breadcrumbs reactively based on current page
@@ -11,10 +13,24 @@
 
   // Only show breadcrumbs if we're not on the home page
   let shouldShowBreadcrumbs = $derived(page.url.pathname !== '/');
+
+  // PR navigation: detect if we're on a PR page and compute adjacent PRs
+  const prMatch = $derived(page.url.pathname.match(/^\/pr\/([^/]+)\/([^/]+)\/(\d+)$/));
+  const adjacentPRs = $derived.by(() => {
+    if (!prMatch) return { prev: null, next: null };
+    const [, owner, repo, number] = prMatch;
+    return getAdjacentPRs($prNavigationList, owner, repo, parseInt(number));
+  });
+  const showPRNav = $derived(prMatch && (adjacentPRs.prev || adjacentPRs.next));
+
+  function navigateToPR(entry: PRNavigationEntry) {
+    goto(`/pr/${entry.owner}/${entry.repo}/${entry.number}`);
+  }
 </script>
 
 {#if shouldShowBreadcrumbs}
   <nav class="breadcrumb-nav bg-gray-800 border-b border-gray-700 px-4 py-2" aria-label="Breadcrumb">
+    <div class="flex items-center justify-between">
     <ol class="flex items-center space-x-2 text-sm">
       {#each breadcrumbs as item, index}
         <li class="flex items-center">
@@ -54,6 +70,36 @@
         </li>
       {/each}
     </ol>
+
+    {#if showPRNav}
+      <div class="flex items-center space-x-2 ml-4 flex-shrink-0">
+        <button
+          onclick={() => adjacentPRs.prev && navigateToPR(adjacentPRs.prev)}
+          disabled={!adjacentPRs.prev}
+          class="pr-nav-btn"
+          title={adjacentPRs.prev ? `Previous: ${adjacentPRs.prev.title} (#${adjacentPRs.prev.number})` : 'No previous PR'}
+          aria-label="Previous pull request"
+        >
+          <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M15 19l-7-7 7-7" />
+          </svg>
+          <span>Prev</span>
+        </button>
+        <button
+          onclick={() => adjacentPRs.next && navigateToPR(adjacentPRs.next)}
+          disabled={!adjacentPRs.next}
+          class="pr-nav-btn"
+          title={adjacentPRs.next ? `Next: ${adjacentPRs.next.title} (#${adjacentPRs.next.number})` : 'No next PR'}
+          aria-label="Next pull request"
+        >
+          <span>Next</span>
+          <svg class="w-4 h-4" fill="none" stroke="currentColor" viewBox="0 0 24 24">
+            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M9 5l7 7-7 7" />
+          </svg>
+        </button>
+      </div>
+    {/if}
+    </div>
   </nav>
 {/if}
 
@@ -82,4 +128,34 @@
   .breadcrumb-current {
     color: #d1d5db;
   }
+
+  .pr-nav-btn {
+    display: inline-flex;
+    align-items: center;
+    gap: 0.25rem;
+    padding: 0.25rem 0.625rem;
+    border-radius: 0.375rem;
+    border: 1px solid #4b5563;
+    color: #d1d5db;
+    font-size: 0.8125rem;
+    font-weight: 500;
+    transition: all 0.2s ease;
+    background-color: rgba(55, 65, 81, 0.5);
+  }
+
+  .pr-nav-btn:hover:not(:disabled) {
+    background-color: rgba(59, 130, 246, 0.15);
+    border-color: #60a5fa;
+    color: #60a5fa;
+  }
+
+  .pr-nav-btn:disabled {
+    opacity: 0.3;
+    cursor: not-allowed;
+  }
+
+  .pr-nav-btn:focus {
+    outline: none;
+    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.5);
+  }
 </style>