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Issue abstract: Autofill works in Chrome but not in Safari 26.4 on Mac OS26.4
Detailed description: The Norton password manager autofill icons do not appear on any web page. I have installed and reinstalled safeweb plus, I have disabled and reenabled the safari extensions, I have logged out of and logged back into Norton.
Product & version number: Norton Safeweb Plus 1.3.8
OS details: Mac 26.4, safari 26.4
What is the error message you are seeing? no error…the Norton icon does not appear in the username or password fields on a login webpage
If you have any supporting screenshots, please add them:
fwiw ~ as per AI
If Norton Password Manager is working in Chrome but not Safari, it typically means the browser-specific app extension is disabled or has been replaced by a newer version required for current Safari releases.
1. Enable the Extension in Safari
Safari handles extensions differently than Chrome. Even if the Norton app is installed, the Safari extension must be manually toggled on:
Open Safari.
Go to the Safari menu (top-left) and select Settings (or Preferences).
Click the Extensions tab.
In the left pane, ensure the checkbox for Norton Password Manager is checked.
2. Check Safari Autofill Conflict
Safari’s native autofill settings can sometimes interfere with third-party managers:
In Safari > Settings, go to the AutoFill tab.
Ensure User names and passwords is selected.
Alternatively, if Norton is meant to be the primary manager, some users find success by disabling Safari’s built-in autofill to prevent “clashing” with Norton.
3. Update to the “Norton Safe Web Plus” App
Newer versions of Safari (13.0+) no longer support older legacy extensions. You may need to download the modern app version from the App Store:
Download Norton Safe Web Plus from the Mac App Store.
This “Plus” app contains the modern extension required for current Safari versions to support both Safe Web and Password Manager features.
4. Grant System-Level Permissions
If the extension is active but not filling fields, macOS may be blocking its background processes:
Go to the Apple menu > System Settings > Privacy & Security.
Scroll to Full Disk Access and ensure Norton is enabled.
Check Login Items & Extensions under the General tab to ensure Norton extensions are permitted to run at startup.
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To fix autofill issues with Norton Safe Web Plus on Safari for Mac, you must ensure both the Safari system settings and the Norton extension permissions are correctly configured.
Enable Extensions in Safari
Autofill won’t work if the extension isn’t fully active in the browser.
Open Safari and go to Settings (or Preferences) from the top menu.
Select the Extensions tab.
In the sidebar, ensure both Norton Safe Web and Norton Password Manager are checked.
If they are already checked, uncheck and re-check them to refresh the connection.
Configure Safari AutoFill Settings
MacOS has its own autofill that can sometimes conflict with third-party managers.
In the same Safari Settings window, click the AutoFill tab.
Ensure User names and passwords is selected.
Note: If you want Norton to be your primary manager, you may need to disable the built-in Safari/iCloud Keychain prompts to avoid overlapping popups.
Check Extension Vault Status
The Norton extension cannot autofill if the vault is locked or the URL doesn’t match.
Click the Norton Password Manager icon in the Safari toolbar.
Log in and unlock your vault using your password or Mobile Unlock.
Verify that the URL of the site you are visiting matches the Saved URL in your Norton vault.
System-Wide Permissions (macOS Sequoia and later)
Newer macOS versions require explicit permission for third-party password managers to “fill” fields.
Go to the Apple menu > System Settings > General > AutoFill & Passwords.
Under Password Options, make sure Norton Password Manager is toggled ON to allow it to provide autofill data.
Troubleshooting “No Response” or Missing Icons
If you cannot toggle the extension or the icon doesn’t appear:
Safe Mode Fix: Restart your Mac in Safe Mode (hold Power button on startup > Continue in Safe Mode), enable the Norton extensions in Safari, and then restart normally.
Force Quit: If an update is stuck, use Command + Option + Esc to force quit Norton Safe Web Plus and Safari, then restart both.
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On macOS 26.4 (Tahoe) and Safari 26.4, autofill issues with the Norton Password Manager extension often stem from the new system-wide security permissions for third-party password managers or conflicts with the redesigned Safari interface.
Enable System-Wide Autofill Permissions
In macOS 26.4, Apple requires explicit permission for any third-party app to autofill credentials.
Go to the Apple menu > System Settings > General > AutoFill & Passwords.
Click on Password Options.
Ensure the toggle for Norton Password Manager is turned ON.
If it is already on, toggle it off and back on to refresh the permission.
Verify Safari Extension Compatibility
Safari 26.4 re-introduced a “compact tab layout,” which can occasionally hide extension icons or prevent their pop-ups from appearing correctly.
Go to Safari > Settings > Extensions.
Verify that both Norton Safe Web and Norton Password Manager are enabled.
If the Norton icon is missing from the address bar, check if it has been moved to the Extensions menu (the puzzle piece icon) in the toolbar.
Check for Content Filter Conflicts
MacOS 26.4.1 was released specifically to address issues where content filter extensions (like those in Norton Safe Web Plus) could cause connectivity or performance bugs.
Ensure your Mac is updated to at least macOS 26.4.1 via System Settings > General > Software Update.
Update the Norton Safe Web Plus app directly from the Mac App Store.
Troubleshoot Site-Specific Failures
If autofill fails on a specific site:
Ensure your Norton Vault is unlocked. The icon in the login fields will be greyed out if it’s locked.
Verify the Saved URL in your vault exactly matches the website’s address.
For sites with “split-page logins” (where username and password are on separate pages), you may need to click the Norton icon in the field manually.
Are the Norton icons appearing inside the username/password fields, or is the extension completely unresponsive when you click it?
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Note: AI sourced content may make mistakes Caveat: I’m not Mac
fwiw ~ as per ChatGPT (Norton app)
This is a known kind of issue on Safari—especially after macOS/Safari updates—where extensions stay “enabled” but don’t actually hook into autofill properly. Since you’ve already done the obvious reinstall/relogin steps, it’s likely something deeper in Safari’s settings or extension permissions.
Here are the things most likely to fix it:
1. Check Safari AutoFill + Password settings (this one trips people up)
Safari’s own password/autofill system can block third-party managers from showing icons.
Go to Safari → Settings → AutoFill
Turn OFF “User names and passwords” (temporarily)
Make sure Norton (or “other password managers”) is allowed if that option exists
2. Verify extension permissions per website
Safari now restricts extensions per site:
Go to any website
Click the puzzle icon (Extensions) in the toolbar
Find Norton Safe Web Plus / Password Manager
Set it to “Always Allow on Every Website”
If it’s on “Ask” or “Deny,” icons won’t appear.
3. Enable it under macOS Extensions (separate from Safari toggle)
Mac sometimes disables extensions at the OS level:
Go to System Settings → Privacy & Security → Extensions → Safari Extensions
Make sure Norton-related extensions are enabled there too
4. Clear Safari extension state (important after updates)
Safari updates can leave extensions in a broken state:
Disable Norton extensions
Quit Safari completely
Reopen Safari
Re-enable the extensions
Then restart your Mac (yes, it still matters here).
5. Check for compatibility gap (very likely in your case)
You’re on Safari 26.4 / macOS 26.4, which is quite new. Norton Safe Web Plus 1.3.8 may not fully support that version yet.
Signs this is the issue:
Works in Chrome
No icons anywhere in Safari
Reinstall didn’t help
If that’s the case, your options are:
Wait for a Norton extension update
Use Chrome/Edge temporarily for autofill
Or use Norton Password Manager via its vault (manual copy/paste)
6. Quick sanity check
Try a private window in Safari:
If it works there → it’s a permissions/settings conflict
If it doesn’t → it’s likely compatibility
If you want, tell me:
whether the extension shows up in the Safari toolbar at all
and what happens when you click it
That can narrow it down to either a permissions issue or a version compatibility problem pretty quickly.
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If the Norton icon isn’t appearing inside username/password fields at all in Safari, but works in Chrome, then this is almost never a vault/login issue. It’s usually one of three things: permissions, Safari blocking content scripts, or version incompatibility.
Given everything you’ve already tried, here’s how I’d narrow it down:
Most likely cause in your case: Safari compatibility issue
You’re on Safari 26.4 + Safe Web Plus 1.3.8. When the field icon is completely missing everywhere, it usually means the extension’s content script isn’t loading into pages at all.
That happens when:
Safari changed extension APIs (common after updates)
The Norton extension hasn’t caught up yet
This matches your symptoms exactly:
Chrome works
No icons on any site
Reinstall didn’t fix
So realistically, this may not be fixable until Norton updates the extension.
Still worth checking (quick, high-impact)
1. “Allow on Every Website” (critical)
Even if enabled globally, Safari can silently block field injection:
Open a login page
Click the Extensions (puzzle icon)
Select Norton
Set to Always Allow on Every Website
If this isn’t set, icons won’t appear in fields at all.
2. Make sure JavaScript isn’t restricted
Norton relies on it to inject the icon:
Safari → Settings → Security
Ensure Enable JavaScript is ON
Then check:
Privacy tab → uncheck “Prevent cross-site tracking” (temporarily for testing)
3. Check Content Blockers conflict
Some blockers stop password managers from injecting UI:
Safari → Settings → Extensions
Temporarily disable:
Ad blockers
Privacy extensions
Leave only Norton enabled → test again
4. Test a “clean” site
Try something simple like:
example: a basic login page (e.g., GitHub, Microsoft)
If it fails everywhere, that reinforces a compatibility issue.
What to do if nothing changes
At that point, you’re realistically down to:
Wait for Norton to update Safe Web Plus
Or use:
Chrome/Edge for autofill (best short-term fix)
Safari + manual vault access
One useful check (optional)
When you click the Norton extension in Safari’s toolbar:
Does it open your vault normally?
Or does it act broken/blank?
If it opens fine but still no field icons → 100% confirms it’s the page-injection issue (not your account).
Note: AI sourced content may make mistakes Caveat: I’m not Mac
Most likely cause in your case: Safari compatibility issue
This matches your symptoms exactly: