Mozilla.org FAQ

Answers to your most common questions about Mozilla.org.

Quick, simple, and helpful information at a glance.

How do I download and install Mozilla Firefox?
You can download and install Mozilla Firefox by going to their official website, clicking on the "Download" button, and following the prompts. You can find the official website here: https://www.mozilla.org/en-US/firefox/
Why is Mozilla Firefox not working properly?
There could be various reasons why Firefox is not working properly. Some common issues include outdated browser, corrupt user profile, conflicting extensions or plugins, and malware. Try clearing your browser's cache and cookies, updating the browser, and disabling conflicting extensions to resolve the issue.
How do I clear my Firefox cache and cookies?
To clear the cache and cookies in Firefox, click on the menu button (three horizontal lines), select "Options," go to the "Privacy & Security" tab, and click on "Clear Data." Make sure the boxes next to "Cookies and Site Data" and "Cached Web Content" are checked, then click "Clear."
How do I update Mozilla Firefox?
By default, Firefox automatically updates to the latest version. However, if you want to manually check for updates, click on the menu button, select "Help," and click on "About Firefox." If an update is available, it will automatically start downloading.
Why is Mozilla Firefox running slow?
There could be various reasons for a slow Firefox, such as a large number of opened tabs, outdated browser, outdated or conflicting extensions, too many temporary files, or insufficient system resources. Close unnecessary tabs, update Firefox and extensions, clear the cache, and restart your computer to improve Firefox's performance.
How do I disable extensions in Firefox?
To disable extensions in Firefox, click on the menu button, select "Add-ons," go to the "Extensions" tab, and click on the toggle button next to the extension you want to disable. Alternatively, you can also right-click on the extension and select "Disable."
How do I enable pop-ups in Firefox?
To allow pop-ups in Firefox, click on the menu button, select "Options," go to the "Privacy & Security" tab, scroll down to the "Permissions" section, and click on "Settings" next to "Block pop-up windows." Add the website you want to allow pop-ups from or select "Allow all sites" to allow pop-ups from all websites.
Why is Firefox constantly crashing?
A crashing Firefox could be due to various reasons, such as outdated browser, outdated or conflicting extensions, corrupt user profile, or malware. Try updating Firefox and extensions, disabling conflicting extensions, and scanning your computer for malware to resolve the issue.
How do I reset Firefox?
You can reset Firefox by clicking on the menu button, selecting "Help," and clicking on "Troubleshooting Information." In the new tab, click on "Refresh Firefox" and then confirm the action. This will reset Firefox to its default settings while keeping your bookmarks, history, and passwords.
How do I manage my bookmarks in Firefox?
To manage bookmarks in Firefox, click on the bookmarks icon (star) on the toolbar and select "Show All Bookmarks." From there, you can organize, edit, and delete your bookmarks. You can also use the shortcut "Ctrl + Shift + B" to open the bookmark manager.
How do I change my default search engine in Firefox?
To change your default search engine in Firefox, click on the menu button, select "Options," go to the "Search" tab, and use the drop-down menu next to "Default Search Engine" to select your preferred search engine.
Why am I seeing a "Secure Connection Failed" error in Firefox?
This error usually occurs when Firefox cannot establish a secure connection with the website due to an invalid security certificate or outdated security protocols. Try accessing the website in a different browser or contact the website's administrator for more information.
How do I view my browsing history in Firefox?
To view your browsing history in Firefox, click on the menu button, select "History," and then click on "Show All History." You can also use the shortcut "Ctrl + H" to open the history in a new tab.
How do I block websites from tracking me in Firefox?
To block websites from tracking you in Firefox, click on the menu button, select "Options," go to the "Privacy & Security" tab, and under the "Enhanced Tracking Protection" section, select "Custom" and toggle on the "Cookies" and "Tracking Content" options.
Why is Firefox displaying a blank page instead of a website?
This issue could be due to various reasons, such as slow internet connection, corrupted cache, or incorrect proxy settings. Try refreshing the page, clearing the cache, or checking your internet connection. You can also try accessing the website in a different browser to determine if the issue is specific to Firefox.
How do I change the language on Firefox?
To change the language on Firefox, click on the menu button, select "Options," go to the "General" tab, and scroll down to the "Language and Appearance" section. Use the drop-down menu next to "Choose your preferred language" to select your desired language. You may need to restart Firefox for the changes to take effect.
How do I manage my Firefox downloads?
To manage your Firefox downloads, click on the downloads icon (down arrow) on the toolbar. From there, you can view and manage your current downloads, view your download history, and change your download settings.
How do I change my default homepage in Firefox?
To change your default homepage in Firefox, click on the menu button, select "Options," go to the "Home" tab, and enter the URL of the website you want to use as your homepage or click on "Restore Default" to set it to Mozilla Firefox's default homepage.
Why is Firefox not playing videos on certain websites?
This issue can occur due to various reasons, such as outdated browser, outdated or conflicting plugins, or incorrect settings. Try updating Firefox and plugins, clearing the cache, and checking your internet connection. You can also try accessing the website in a different browser.
How do I disable notifications in Firefox?
To disable notifications in Firefox, click on the menu button, select "Options," go to the "Privacy & Security" tab, and scroll down to the "Permissions" section. Click on "Settings" next to "Notifications" and toggle off the websites you don't want to receive notifications from.
How do I turn off autoplay videos in Firefox?
To turn off autoplay videos in Firefox, click on the menu button, select "Options," go to the "Privacy & Security" tab, and under the "Permissions" section, click on "Settings" next to "Autoplay." Select "Block Audio and Video" to disable autoplay.
Why is my Firefox homepage/search engine defaulting to Yahoo?
This could be due to a potentially unwanted program (PUP) that has changed your Firefox settings. Try using an anti-malware program to scan and remove any potential PUPs. You can also reset Firefox to its default