When Dashlane stops logging in, syncing, or autofilling passwords, the cause is usually a browser, app, or account setting rather than a full outage.
This guide explains how to fix Dashlane not working with clear steps that cover desktop, mobile, and browser extension problems.
Check whether the problem is with Dashlane or your device
Before changing settings, determine whether the issue is local to your device or affecting Dashlane more broadly.
If Dashlane works on one device but not another, the issue is usually tied to the browser extension, app version, or account configuration.
- Try Dashlane on another browser or device.
- Check whether you can sign in to the Dashlane web app.
- Verify your internet connection and VPN status.
- Look for known service issues on Dashlane’s status pages or support channels.
If Dashlane fails everywhere, the problem may be account-related, such as an expired subscription, sign-in verification issue, or a temporary service disruption.
Restart Dashlane and your browser or app
A simple restart often clears temporary memory, extension, and session problems.
Close Dashlane completely, then reopen your browser or mobile app and test again.
On desktop, make sure the browser is fully closed, not just the tab.
On Windows, use Task Manager to end the browser process if needed; on macOS, quit the app from the menu and relaunch it.
Update Dashlane, your browser, and your operating system
Outdated software is a common reason Dashlane stops working correctly.
Dashlane depends on browser APIs, password manager permissions, and security features that can break after system updates if the app is not current.
- Update the Dashlane desktop app.
- Update the browser extension in Chrome, Firefox, Edge, or Safari.
- Install the latest browser version.
- Apply pending Windows, macOS, iOS, or Android updates.
If you use Dashlane in a browser, make sure the browser itself supports the current extension version.
Some autofill and login features can fail after major browser updates until the extension is refreshed.
Clear the cache or reinstall the Dashlane extension
Corrupted browser data can block Dashlane from loading, syncing, or detecting login fields.
Clearing the browser cache or reinstalling the extension often resolves persistent UI problems.
For browser extensions
- Remove the Dashlane extension from the browser.
- Restart the browser.
- Reinstall the extension from the official browser store.
- Sign back in and test autofill.
For the desktop app
- Sign out of Dashlane.
- Quit the app fully.
- Restart your computer.
- Open Dashlane again and sign in.
If clearing browser cache helps temporarily but the issue returns, extension conflict is a likely cause.
Review browser permissions and autofill settings
Dashlane needs the right permissions to detect pages and fill credentials.
If autofill is not working, check whether the browser is blocking the extension or overriding password-manager behavior.
- Allow Dashlane to read and change site data where needed.
- Ensure password autofill is enabled in Dashlane settings.
- Disable competing password managers in the browser.
- Check that the website allows script and cookie access.
Chrome, Microsoft Edge, Firefox, and Safari each handle password permissions differently, so a setting that works in one browser may not work in another.
Fix sign-in issues with multi-factor authentication and account access
If you cannot log in to Dashlane, the issue may involve your master password, verification method, or recovery setup.
Unlike a normal website login, Dashlane uses strong authentication that can fail if a device change or security step is incomplete.
- Confirm you are entering the correct email address.
- Check Caps Lock and keyboard layout when entering the master password.
- Verify your two-factor authentication code or authentication app.
- Make sure your recovery information is still accessible.
If you changed phones, reinstalled an authenticator app, or switched browsers, reauthorize the device if Dashlane prompts for it.
Resolve sync problems between devices
Dashlane relies on sync to keep passwords, secure notes, and payment details updated across devices.
When sync fails, one device may show old data while another shows recent changes.
To fix sync problems, sign out and sign back in on the affected device, then allow a few minutes for the vault to refresh.
If the issue continues, check whether background sync is disabled, battery optimization is restricting the mobile app, or the extension has lost access to the account session.
On mobile, also confirm that cellular data or Wi-Fi access is available and that the app can run in the background.
On desktop, a stale browser session can prevent sync until the extension is reloaded.
Disable conflicting extensions and security tools
Other browser extensions can interfere with Dashlane, especially ad blockers, script blockers, privacy tools, and competing password managers.
Security software may also block local network requests or browser injection used by password managers.
- Temporarily disable ad blockers and privacy extensions.
- Turn off other password managers in the browser.
- Test in a private window with only Dashlane enabled.
- Review antivirus or endpoint protection settings if the issue appears on a work computer.
If Dashlane works in a clean browser profile, the conflict is likely caused by another extension or a strict browser policy.
Reinstall the app when corruption is likely
If Dashlane still fails after updates, permissions checks, and extension resets, the local installation may be corrupted.
Reinstalling the app can replace missing files and reset damaged preferences.
Before reinstalling, confirm that your data is synced to the account so nothing is lost locally.
Then uninstall Dashlane, restart the device, install the latest version from the official source, and sign in again.
Check mobile-specific issues on iPhone and Android
Mobile autofill depends on OS-level password permissions, accessibility settings, and app background behavior.
If Dashlane is not working on a phone, look at system settings as well as app settings.
- Enable autofill in iOS or Android settings.
- Allow Dashlane as the default password manager if applicable.
- Turn off battery optimization for Dashlane on Android.
- Make sure screen overlay or accessibility conflicts are not blocking the app.
After major OS upgrades, mobile autofill settings may reset, so it is worth revisiting them even if Dashlane worked previously.
When should you contact Dashlane support?
If none of the common fixes resolve the issue, contact Dashlane support with specific details.
Provide your device type, operating system, browser, app version, and a clear description of what fails: sign-in, sync, autofill, or vault access.
Useful details include the exact error message, the websites affected, whether the issue started after an update, and whether Dashlane works on another device.
That information helps support identify whether the problem is account-based, browser-based, or related to a broader compatibility issue.