Firefox older version free download

Firefox is now up to version number 54 with changes that, according to the company, make it 'the best Firefox in history' thanks to an important performance tweak in the form of multiprocess support when loading tabs. Download our free update detector to keep your software up to date Share This Page.

Mozilla Corporation - Stay safe: Download only from the official Mozilla links above to avoid malware and other online threats. A page launches that displays several files and folders, among them various operating systems.

Click the 'System 32' folder or similar this may also be called 'win32' for the Windows operating system, to view sub-folders for various languages. Click the link next to your language. For instance, if you'd like to install the U. Depending on the version you choose, you may see files with extensions that end in. Table of Contents 1 Installing a previous version doesn't fix most problems 2 I still want to downgrade — where can I get the previous version? Note: Other problems can be solved with the Refresh Firefox feature.

It restores Firefox to its default state while saving your essential information. Warning: Older Firefox versions pose a significant security risk. Firefox Important : By default, Firefox is set for automatic updates. To prevent Firefox from automatically updating itself after you install an older version, you'll need to change your Firefox update settings: In the Menu bar at the top of the screen, click Firefox and select Preferences.

In the General panel, go to the Firefox Updates section. Microsoft Edge. Old Version. Add info. Mozilla Firefox 1. Mozilla Firefox 3.

Mozilla Firefox 4. Mozilla Firefox 5. Mozilla Firefox 6.