common forum responses

Note: This document is used as a listing for the canned responses tool. See the Create or improve common forum responses article for guidelines.


Installing an extension

Uninstalling an extension

Switch to previous theme

Cache and Cookies

Clear cache and cookies

Reload a site and bypass the cache

Common troubleshooting steps

Starting Firefox in Safe Mode

Get troubleshooting information

Clean reinstall (Firefox)

Refresh Firefox - reset defaults


Firefox crashes

Firefox crashes when you open it (Windows)

Firefox crashes when you open it (Mac)

Firefox Quantum Hot Topics

Quantum Default Homepage

Quantum's New Look, Where can I find ...

64 bit Firefox on Windows

Flash End of Life

Tabs below the URL bar

Bookmark folders missing in Firefox Quantum

Hot Topics

Websites will not load after Firefox update

Shield Study Opt in/out Option

Install voices for Narrate to work with other locales

I found a fake Firefox update

Firefox Sync Verification Email FAQs

Unauthorized access to Firefox Accounts and Sync

Disable Javascript

Mixed Content


Opening the Firefox configuration

Zoom feature

Lost Bookmarks

I-icon in address bar

Creating a screenshot

Missing Toolbar

Turning off automatic Firefox update

Malware (Windows Only)

Disable hardware acceleration in Firefox


Problem Resolved

Create A New Thread


Flash problems

Disable hardware acceleration in Flash Player

Choose another PDF reader

Printing and print preview

Check print margins

Add Yahoo Search to Firefox

Search Hijacker

Changing default search engine

Firefox for Android

Clear cache and cookies (Android)

Add Quit back (Android)

No Firefox for Symbian, Windows Phone, etc (Android)

Customizing the start screen (home page) (Android)

Turn on Family Friendly Browsing (Android)

Bookmark Management (Android)

Firefox for iOS

Bookmarks won't sync on Firefox for iOS

I can't find Firefox for iOS in the app store

Clear Firefox cache in iOS

Send tabs to other devices in iOS

Set Firefox as your default browser in iOS

Forum response - Missing bookmark star on iOS


Clean Reinstall (Thunderbird)

Troubleshooting Thunderbird using Safe Mode

Asking for Troubleshooting Information (Thunderbird)

Duplicate emails (Thunderbird)

Missing email (Thunderbird)

Firefox Sync

Sync not a backup service

Forced Sync after a failed Sync

// These fine people helped write this article:AliceWyman, Kadir Topal, Tonnes, Michele Rodaro, user66338, Noah_SUMO, Roland Tanglao, Andrew, John99, Toad-Hall, Nathan2055, Safwan Rahman, Matt, Tyler Downer, Ralph Daub, Amit Kumar Thakur, Wesley Branton, kobe, user917725, Meghraj Suthar, guigs, Joni, Seburo. You can help too - find out how.

Was this article helpful? Please wait...

Volunteer for Mozilla Support