Skip to content

Firefox: Permission denied to access property "nodeType" #15559

Closed
#15825
getsentry/rrweb
#243
Closed
Firefox: Permission denied to access property "nodeType"#15559
#15825
getsentry/rrweb
#243
Assignees
chargome
Labels
Bug

Description

@joanargarrido
joanargarrido
opened on Mar 3, 2025

Is there an existing issue for this?

How do you use Sentry?

Sentry Saas (sentry.io)

Which SDK are you using?

@sentry/browser

SDK Version

9.3.0

Framework Version

React 18.3.1

Link to Sentry event

No response

Reproduction Example/SDK Setup

No response

Steps to Reproduce

In Firefox, try to screenshot using Firefox integrated screenshot tool (Ctrl+Shift+S)

It only happens in Firefox, all is working great for Chrome for example.

If I remove Sentry.replayIntegration() for Sentry.init, everything works as expected

Expected Result

I'm able to screenshot.

Actual Result

Image

Image

Metadata

Metadata

Assignees

Labels

Bug

Projects

Milestone

No milestone

Relationships

None yet

Development

No branches or pull requests

Issue actions

, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
 blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
Firefox: Permission denied to access property "nodeType" · Issue #15559 · getsentry/sentry-javascript · GitHub
Skip to content
Firefox: Permission denied to access property "nodeType" #15559
Closed
#15825
getsentry/rrweb
#243
Closed
Firefox: Permission denied to access property "nodeType"#15559
#15825
getsentry/rrweb
#243
Assignees
chargome
Labels
Bug
Description
@joanargarrido
joanargarrido
opened on Mar 3, 2025
Is there an existing issue for this?
How do you use Sentry?
Sentry Saas (sentry.io)
Which SDK are you using?
@sentry/browser
SDK Version
9.3.0
Framework Version
React 18.3.1
Link to Sentry event
No response
Reproduction Example/SDK Setup
No response
Steps to Reproduce
In Firefox, try to screenshot using Firefox integrated screenshot tool (Ctrl+Shift+S)
It only happens in Firefox, all is working great for Chrome for example.
If I remove Sentry.replayIntegration() for Sentry.init, everything works as expected
Expected Result
I'm able to screenshot.
Actual Result
Image
Image
Metadata
Metadata
Assignees
Labels
Bug
Projects
Milestone
No milestone
Relationships
None yet
Development
No branches or pull requests
Issue actions

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Firefox: Permission denied to access property "nodeType" · Issue #15559 · getsentry/sentry-javascript · GitHub
Skip to content
Firefox: Permission denied to access property "nodeType" #15559
Closed
#15825
getsentry/rrweb
#243
Closed
Firefox: Permission denied to access property "nodeType"#15559
#15825
getsentry/rrweb
#243
Assignees
chargome
Labels
Bug
Description
@joanargarrido
joanargarrido
opened on Mar 3, 2025
Is there an existing issue for this?
How do you use Sentry?
Sentry Saas (sentry.io)
Which SDK are you using?
@sentry/browser
SDK Version
9.3.0
Framework Version
React 18.3.1
Link to Sentry event
No response
Reproduction Example/SDK Setup
No response
Steps to Reproduce
In Firefox, try to screenshot using Firefox integrated screenshot tool (Ctrl+Shift+S)
It only happens in Firefox, all is working great for Chrome for example.
If I remove Sentry.replayIntegration() for Sentry.init, everything works as expected
Expected Result
I'm able to screenshot.
Actual Result
Image
Image
Metadata
Metadata
Assignees
Labels
Bug
Projects
Milestone
No milestone
Relationships
None yet
Development
No branches or pull requests
Issue actions

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Firefox: Permission denied to access property "nodeType" · Issue #15559 · getsentry/sentry-javascript · GitHub
Skip to content
Firefox: Permission denied to access property "nodeType" #15559
Closed
#15825
getsentry/rrweb
#243
Closed
Firefox: Permission denied to access property "nodeType"#15559
#15825
getsentry/rrweb
#243
Assignees
chargome
Labels
Bug
Description
@joanargarrido
joanargarrido
opened on Mar 3, 2025
Is there an existing issue for this?
How do you use Sentry?
Sentry Saas (sentry.io)
Which SDK are you using?
@sentry/browser
SDK Version
9.3.0
Framework Version
React 18.3.1
Link to Sentry event
No response
Reproduction Example/SDK Setup
No response
Steps to Reproduce
In Firefox, try to screenshot using Firefox integrated screenshot tool (Ctrl+Shift+S)
It only happens in Firefox, all is working great for Chrome for example.
If I remove Sentry.replayIntegration() for Sentry.init, everything works as expected
Expected Result
I'm able to screenshot.
Actual Result
Image
Image
Metadata
Metadata
Assignees
Labels
Bug
Projects
Milestone
No milestone
Relationships
None yet
Development
No branches or pull requests
Issue actions

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
Firefox: Permission denied to access property "nodeType" · Issue #15559 · getsentry/sentry-javascript · GitHub
Skip to content
Firefox: Permission denied to access property "nodeType" #15559
Closed
#15825
getsentry/rrweb
#243
Closed
Firefox: Permission denied to access property "nodeType"#15559
#15825
getsentry/rrweb
#243
Assignees
chargome
Labels
Bug
Description
@joanargarrido
joanargarrido
opened on Mar 3, 2025
Is there an existing issue for this?
How do you use Sentry?
Sentry Saas (sentry.io)
Which SDK are you using?
@sentry/browser
SDK Version
9.3.0
Framework Version
React 18.3.1
Link to Sentry event
No response
Reproduction Example/SDK Setup
No response
Steps to Reproduce
In Firefox, try to screenshot using Firefox integrated screenshot tool (Ctrl+Shift+S)
It only happens in Firefox, all is working great for Chrome for example.
If I remove Sentry.replayIntegration() for Sentry.init, everything works as expected
Expected Result
I'm able to screenshot.
Actual Result
Image
Image
Metadata
Metadata
Assignees
Labels
Bug
Projects
Milestone
No milestone
Relationships
None yet
Development
No branches or pull requests
Issue actions

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Firefox: Permission denied to access property "nodeType" · Issue #15559 · getsentry/sentry-javascript · GitHub
Skip to content
Firefox: Permission denied to access property "nodeType" #15559
Closed
#15825
getsentry/rrweb
#243
Closed
Firefox: Permission denied to access property "nodeType"#15559
#15825
getsentry/rrweb
#243
Assignees
chargome
Labels
Bug
Description
@joanargarrido
joanargarrido
opened on Mar 3, 2025
Is there an existing issue for this?
How do you use Sentry?
Sentry Saas (sentry.io)
Which SDK are you using?
@sentry/browser
SDK Version
9.3.0
Framework Version
React 18.3.1
Link to Sentry event
No response
Reproduction Example/SDK Setup
No response
Steps to Reproduce
In Firefox, try to screenshot using Firefox integrated screenshot tool (Ctrl+Shift+S)
It only happens in Firefox, all is working great for Chrome for example.
If I remove Sentry.replayIntegration() for Sentry.init, everything works as expected
Expected Result
I'm able to screenshot.
Actual Result
Image
Image
Metadata
Metadata
Assignees
Labels
Bug
Projects
Milestone
No milestone
Relationships
None yet
Development
No branches or pull requests
Issue actions

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
Firefox: Permission denied to access property "nodeType" · Issue #15559 · getsentry/sentry-javascript · GitHub
Skip to content
Firefox: Permission denied to access property "nodeType" #15559
Closed
#15825
getsentry/rrweb
#243
Closed
Firefox: Permission denied to access property "nodeType"#15559
#15825
getsentry/rrweb
#243
Assignees
chargome
Labels
Bug
Description
@joanargarrido
joanargarrido
opened on Mar 3, 2025
Is there an existing issue for this?
How do you use Sentry?
Sentry Saas (sentry.io)
Which SDK are you using?
@sentry/browser
SDK Version
9.3.0
Framework Version
React 18.3.1
Link to Sentry event
No response
Reproduction Example/SDK Setup
No response
Steps to Reproduce
In Firefox, try to screenshot using Firefox integrated screenshot tool (Ctrl+Shift+S)
It only happens in Firefox, all is working great for Chrome for example.
If I remove Sentry.replayIntegration() for Sentry.init, everything works as expected
Expected Result
I'm able to screenshot.
Actual Result
Image
Image
Metadata
Metadata
Assignees
Labels
Bug
Projects
Milestone
No milestone
Relationships
None yet
Development
No branches or pull requests
Issue actions

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
Firefox: Permission denied to access property "nodeType" · Issue #15559 · getsentry/sentry-javascript · GitHub
Skip to content
Firefox: Permission denied to access property "nodeType" #15559
Closed
#15825
getsentry/rrweb
#243
Closed
Firefox: Permission denied to access property "nodeType"#15559
#15825
getsentry/rrweb
#243
Assignees
chargome
Labels
Bug
Description
@joanargarrido
joanargarrido
opened on Mar 3, 2025
Is there an existing issue for this?
How do you use Sentry?
Sentry Saas (sentry.io)
Which SDK are you using?
@sentry/browser
SDK Version
9.3.0
Framework Version
React 18.3.1
Link to Sentry event
No response
Reproduction Example/SDK Setup
No response
Steps to Reproduce
In Firefox, try to screenshot using Firefox integrated screenshot tool (Ctrl+Shift+S)
It only happens in Firefox, all is working great for Chrome for example.
If I remove Sentry.replayIntegration() for Sentry.init, everything works as expected
Expected Result
I'm able to screenshot.
Actual Result
Image
Image
Metadata
Metadata
Assignees
Labels
Bug
Projects
Milestone
No milestone
Relationships
None yet
Development
No branches or pull requests
Issue actions