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Downgrading to a previous Firefox version doesn't solve most problems. This article links to older versions and provides some alternatives.

{warning}'''Warning:''' Firefox now includes [[Dedicated profiles per Firefox installation#w_what-happens-to-my-profile-if-i-downgrade-to-a-previous-version-of-firefox|downgrade protection]] to prevent corruption of [[Profiles - Where Firefox stores your bookmarks, passwords and other user data|user profile data]]. If you install an older version, you'll be prompted to create a new Firefox profile.{/warning} If there is a problem with a new version of Firefox, some people may want to downgrade Firefox to a previous version but we do not recommend this. The latest Firefox version includes security updates so downgrading to an older version leaves you more vulnerable to attacks and usually doesn't fix the problem. This article gives you some alternatives to downgrading and links to older versions of Firefox if you do choose to downgrade. __TOC__ = Installing a previous version doesn't fix most problems= Problems with an update are usually not caused by the new version of Firefox, but rather the update process. In most cases, installing a previous version will not help. Instead, see: [[Template:UpdateProblems]] {note}'''Note:''' Other problems can be solved with the [[Refresh Firefox - reset add-ons and settings|Refresh Firefox feature]]. It restores Firefox to its default state while saving your essential information.{/note} {for win,win11} Ensure all security and security-related software is fully updated. Some security software will need to be upgraded to a new version so that it is compatible with each Firefox version update. Optional software bundled with security software also may need updating. Such software may not be essential for your security but, if outdated, may interfere with the use of Firefox or cause Firefox to crash. {/for} = I still want to downgrade — where can I get the previous version? = If you still want to downgrade, you can visit Mozilla's directory of older Firefox versions using the links below. Please note, however, that using older versions can make Firefox insecure and more vulnerable to attacks and scams. We recommend that you always use the newest version of Firefox. {warning}'''Warning:''' Older Firefox versions pose a significant security risk.{/warning} {for =fx78} {for win} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/77.0.1/win32/en-US/Firefox%20Setup%2077.0.1.exe Firefox 77.0.1] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/77.0.1/win64/en-US/Firefox%20Setup%2077.0.1.exe Firefox 77.0.1] '''64-bit''' (US English) {/for} {for mac} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/77.0.1/mac/en-US/Firefox%2077.0.1.dmg Firefox 77.0.1] (US English) {/for} {for linux} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/77.0.1/linux-i686/en-US/firefox-77.0.1.tar.bz2 Firefox 77.0.1] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/77.0.1/linux-x86_64/en-US/firefox-77.0.1.tar.bz2 Firefox 77.0.1] '''64-bit''' (US English) {/for} {/for} {for =fx79} {for win} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/78.0.2/win32/en-US/Firefox%20Setup%2078.0.2.exe Firefox 78.0.2] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/78.0.2/win64/en-US/Firefox%20Setup%2078.0.2.exe Firefox 78.0.2] '''64-bit''' (US English) {/for} {for mac} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/78.0.2/mac/en-US/Firefox%2078.0.2.dmg Firefox 78.0.2] (US English) {/for} {for linux} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/78.0.2/linux-i686/en-US/firefox-78.0.2.tar.bz2 Firefox 78.0.2] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/78.0.2/linux-x86_64/en-US/firefox-78.0.2.tar.bz2 Firefox 78.0.2] '''64-bit''' (US English) {/for} {/for} {for =fx80} {for win} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/79.0/win32/en-US/Firefox%20Setup%2079.0.exe Firefox 79.0] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/79.0/win64/en-US/Firefox%20Setup%2079.0.exe Firefox 79.0] '''64-bit''' (US English) {/for} {for mac} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/79.0/mac/en-US/Firefox%2079.0.dmg Firefox 79.0] (US English) {/for} {for linux} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/79.0/linux-i686/en-US/firefox-79.0.tar.bz2 Firefox 79.0] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/79.0/linux-x86_64/en-US/firefox-79.0.tar.bz2 Firefox 79.0] '''64-bit''' (US English) {/for} {/for} {for =fx81} {for win} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/80.0.1/win32/en-US/Firefox%20Setup%2080.0.1.exe Firefox 80.0.1] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/80.0.1/win64/en-US/Firefox%20Setup%2080.0.1.exe Firefox 80.0.1] '''64-bit''' (US English) {/for} {for mac} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/80.0.1/mac/en-US/Firefox%2080.0.1.dmg Firefox 80.0.1] (US English) {/for} {for linux} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/80.0.1/linux-i686/en-US/firefox-80.0.1.tar.bz2 Firefox 80.0.1] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/80.0.1/linux-x86_64/en-US/firefox-80.0.1.tar.bz2 Firefox 80.0.1] '''64-bit''' (US English) {/for} {/for} {for =fx82} {for win} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/81.0.2/win32/en-US/Firefox%20Setup%2081.0.2.exe Firefox 81.0.2] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/81.0.2/win64/en-US/Firefox%20Setup%2081.0.2.exe Firefox 81.0.2] '''64-bit''' (US English) {/for} {for mac} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/81.0.2/mac/en-US/Firefox%2081.0.2.dmg Firefox 81.0.2] (US English) {/for} {for linux} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/81.0.2/linux-i686/en-US/firefox-81.0.2.tar.bz2 Firefox 81.0.2] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/81.0.2/linux-x86_64/en-US/firefox-81.0.2.tar.bz2 Firefox 81.0.2] '''64-bit''' (US English) {/for} {/for} {for =fx83} {for win} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/82.0.3/win32/en-US/Firefox%20Setup%2082.0.3.exe Firefox 82.0.3] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/82.0.3/win64/en-US/Firefox%20Setup%2082.0.3.exe Firefox 82.0.3] '''64-bit''' (US English) {/for} {for mac} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/82.0.3/mac/en-US/Firefox%2082.0.3.dmg Firefox 82.0.3] (US English) {/for} {for linux} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/82.0.3/linux-i686/en-US/firefox-82.0.3.tar.bz2 Firefox 82.0.3] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/82.0.3/linux-x86_64/en-US/firefox-82.0.3.tar.bz2 Firefox 82.0.3] '''64-bit''' (US English) {/for} {/for} {for =fx84} {for win} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/83.0/win32/en-US/Firefox%20Setup%2083.0.exe Firefox 83.0] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/83.0/win64/en-US/Firefox%20Setup%2083.0.exe Firefox 83.0] '''64-bit''' (US English) {/for} {for mac} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/83.0/mac/en-US/Firefox%2083.0.dmg Firefox 83.0] (US English) {/for} {for linux} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/83.0/linux-i686/en-US/firefox-83.0.tar.bz2 Firefox 83.0] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/83.0/linux-x86_64/en-US/firefox-83.0.tar.bz2 Firefox 83.0] '''64-bit''' (US English) {/for} {/for} {for =fx85} {for win} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/84.0.2/win32/en-US/Firefox%20Setup%2084.0.2.exe Firefox 84.0.2] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/84.0.2/win64/en-US/Firefox%20Setup%2084.0.2.exe Firefox 84.0.2] '''64-bit''' (US English) {/for} {for mac} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/84.0.2/mac/en-US/Firefox%2084.0.2.dmg Firefox 84.0.2] (US English) {/for} {for linux} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/84.0.2/linux-i686/en-US/firefox-84.0.2.tar.bz2 Firefox 84.0.2] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/84.0.2/linux-x86_64/en-US/firefox-84.0.2.tar.bz2 Firefox 84.0.2] '''64-bit''' (US English) {/for} {/for} {for =fx86} {for win} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/85.0.2/win32/en-US/Firefox%20Setup%2085.0.2.exe Firefox 85.0.2] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/85.0.2/win64/en-US/Firefox%20Setup%2085.0.2.exe Firefox 85.0.2] '''64-bit''' (US English) {/for} {for mac} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/85.0.2/mac/en-US/Firefox%2085.0.2.dmg Firefox 85.0.2] (US English) {/for} {for linux} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/85.0.2/linux-i686/en-US/firefox-85.0.2.tar.bz2 Firefox 85.0.2] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/85.0.2/linux-x86_64/en-US/firefox-85.0.2.tar.bz2 Firefox 85.0.2] '''64-bit''' (US English) {/for} {/for} {for =fx87} {for win} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/86.0.1/win32/en-US/Firefox%20Setup%2086.0.1.exe Firefox 86.0.1] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/86.0.1/win64/en-US/Firefox%20Setup%2086.0.1.exe Firefox 86.0.1] '''64-bit''' (US English) {/for} {for mac} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/86.0.1/mac/en-US/Firefox%2086.0.1.dmg Firefox 86.0.1] (US English) {/for} {for linux} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/86.0.1/linux-i686/en-US/firefox-86.0.1.tar.bz2 Firefox 86.0.1] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/86.0.1/linux-x86_64/en-US/firefox-86.0.1.tar.bz2 Firefox 86.0.1] '''64-bit''' (US English) {/for} {/for} {for =fx88} {for win} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/87.0/win32/en-US/Firefox%20Setup%2087.0.exe Firefox 87.0] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/87.0/win64/en-US/Firefox%20Setup%2087.0.exe Firefox 87.0] '''64-bit''' (US English) {/for} {for mac} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/87.0/mac/en-US/Firefox%2087.0.dmg Firefox 87.0] (US English) {/for} {for linux} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/87.0/linux-i686/en-US/firefox-87.0.tar.bz2 Firefox 87.0] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/87.0/linux-x86_64/en-US/firefox-87.0.tar.bz2 Firefox 87.0] '''64-bit''' (US English) {/for} {/for} {for =fx89} {for win} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/88.0.1/win32/en-US/Firefox%20Setup%2088.0.1.exe Firefox 88.0.1] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/88.0.1/win64/en-US/Firefox%20Setup%2088.0.1.exe Firefox 88.0.1] '''64-bit''' (US English) {/for} {for mac} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/88.0.1/mac/en-US/Firefox%2088.0.1.dmg Firefox 88.0.1] (US English) {/for} {for linux} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/88.0.1/linux-i686/en-US/firefox-88.0.1.tar.bz2 Firefox 88.0.1] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/88.0.1/linux-x86_64/en-US/firefox-88.0.1.tar.bz2 Firefox 88.0.1] '''64-bit''' (US English) {/for} {/for} {for =fx90} {for win} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/89.0.2/win32/en-US/Firefox%20Setup%2089.0.2.exe Firefox 89.0.2] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/89.0.2/win64/en-US/Firefox%20Setup%2089.0.2.exe Firefox 89.0.2] '''64-bit''' (US English) {/for} {for mac} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/89.0.2/mac/en-US/Firefox%2089.0.2.dmg Firefox 89.0.2] (US English) {/for} {for linux} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/89.0.2/linux-i686/en-US/firefox-89.0.2.tar.bz2 Firefox 89.0.2] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/89.0.2/linux-x86_64/en-US/firefox-89.0.2.tar.bz2 Firefox 89.0.2] '''64-bit''' (US English) {/for} {/for} {for =fx91} {for win} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/90.0.2/win32/en-US/Firefox%20Setup%2090.0.2.exe Firefox 90.0.2] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/90.0.2/win64/en-US/Firefox%20Setup%2090.0.2.exe Firefox 90.0.2] '''64-bit''' (US English) {/for} {for mac} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/90.0.2/mac/en-US/Firefox%2090.0.2.dmg Firefox 90.0.2] (US English) {/for} {for linux} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/90.0.2/linux-i686/en-US/firefox-90.0.2.tar.bz2 Firefox 90.0.2] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/90.0.2/linux-x86_64/en-US/firefox-90.0.2.tar.bz2 Firefox 90.0.2] '''64-bit''' (US English) {/for} {/for} {for =fx92} {for win} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/91.0.2/win32/en-US/Firefox%20Setup%2091.0.2.exe Firefox 91.0.2] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/91.0.2/win64/en-US/Firefox%20Setup%2091.0.2.exe Firefox 91.0.2] '''64-bit''' (US English) {/for} {for mac} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/91.0.2/mac/en-US/Firefox%2091.0.2.dmg Firefox 91.0.2] (US English) {/for} {for linux} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/91.0.2/linux-i686/en-US/firefox-91.0.2.tar.bz2 Firefox 91.0.2] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/91.0.2/linux-x86_64/en-US/firefox-91.0.2.tar.bz2 Firefox 91.0.2] '''64-bit''' (US English) {/for} {/for} {for =fx93} {for win} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/92.0.1/win32/en-US/Firefox%20Setup%2092.0.1.exe Firefox 92.0.1] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/92.0.1/win64/en-US/Firefox%20Setup%2092.0.1.exe Firefox 92.0.1] '''64-bit''' (US English) {/for} {for mac} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/92.0.1/mac/en-US/Firefox%2092.0.1.dmg Firefox 92.0.1] (US English) {/for} {for linux} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/92.0.1/linux-i686/en-US/firefox-92.0.1.tar.bz2 Firefox 92.0.1] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/92.0.1/linux-x86_64/en-US/firefox-92.0.1.tar.bz2 Firefox 92.0.1] '''64-bit''' (US English) {/for} {/for} {for =fx94} {for win} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/93.0/win32/en-US/Firefox%20Setup%2093.0.exe Firefox 93.0] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/93.0/win64/en-US/Firefox%20Setup%2093.0.exe Firefox 93.0] '''64-bit''' (US English) {/for} {for mac} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/93.0/mac/en-US/Firefox%2093.0.dmg Firefox 93.0] (US English) {/for} {for linux} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/93.0/linux-i686/en-US/firefox-93.0.tar.bz2 Firefox 93.0] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/93.0/linux-x86_64/en-US/firefox-93.0.tar.bz2 Firefox 93.0] '''64-bit''' (US English) {/for} {/for} {for =fx95} {for win} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/94.0.2/win32/en-US/Firefox%20Setup%2094.0.2.exe Firefox 94.0.2] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/94.0.2/win64/en-US/Firefox%20Setup%2094.0.2.exe Firefox 94.0.2] '''64-bit''' (US English) {/for} {for mac} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/94.0.2/mac/en-US/Firefox%2094.0.2.dmg Firefox 94.0.2] (US English) {/for} {for linux} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/94.0.2/linux-i686/en-US/firefox-94.0.2.tar.bz2 Firefox 94.0.2] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/94.0.2/linux-x86_64/en-US/firefox-94.0.2.tar.bz2 Firefox 94.0.2] '''64-bit''' (US English) {/for} {/for} {for =fx96} {for win} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/95.0.2/win32/en-US/Firefox%20Setup%2095.0.2.exe Firefox 95.0.2] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/95.0.2/win64/en-US/Firefox%20Setup%2095.0.2.exe Firefox 95.0.2] '''64-bit''' (US English) {/for} {for mac} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/95.0.2/mac/en-US/Firefox%2095.0.2.dmg Firefox 95.0.2] (US English) {/for} {for linux} *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/95.0.2/linux-i686/en-US/firefox-95.0.2.tar.bz2 Firefox 95.0.2] '''32-bit''' (US English) *[https://download-installer.cdn.mozilla.net/pub/firefox/releases/95.0.2/linux-x86_64/en-US/firefox-95.0.2.tar.bz2 Firefox 95.0.2] '''64-bit''' (US English) {/for} {/for} *[https://ftp.mozilla.org/pub/mozilla.org/firefox/releases/ Directory of other versions and languages] {note}'''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: [[T:optionspreferences]] In the {menu General} panel, go to the ''Firefox Updates'' section.{/note} = Alternatives to downgrading = Instead of downgrading to an older, insecure version of Firefox and changing your update settings, you should consider these alternatives: '''Install Firefox Extended Support Release.''' [https://www.mozilla.org/firefox/organizations/ Firefox Extended Support Release (ESR)] is an official version of Firefox developed for large organizations, such as universities and businesses, but it can also be used for personal computers. Firefox ESR does not come with the latest features but it does have the latest security and stability fixes. For more information, see the article [[Switch to Firefox Extended Support Release (ESR) for personal use]]. '''Use the latest version of another browser.''' If you are not satisfied with the current Firefox version or it simply is not working right now, there are alternative browsers that you can use to browse the web. {for win,win11} {for win10} *[https://support.microsoft.com/help/17171/windows-10-get-to-know-microsoft-edge Microsoft Edge] {/for} {for not win10} *[https://www.microsoft.com/edge Microsoft Edge] {/for} *[https://www.google.com/chrome Google Chrome] *[https://www.opera.com/ Opera] {/for} {for mac} *[https://www.apple.com/safari/ Safari] *[https://www.google.com/chrome Google Chrome] *[https://www.opera.com/ Opera] *[https://www.microsoft.com/edge Microsoft Edge] {/for} {for linux} *[https://www.google.com/chrome Google Chrome] *[https://www.opera.com/ Opera] {/for} <!-- Feedback is on pause: see https://support.mozilla.org/en-US/forums/contributors/714711 posted Dec 3, 2020 =Help us make Firefox better= If the [https://www.mozilla.org/firefox/all/ latest version of Firefox] is giving you trouble or you just don't like something about it, please give us feedback about it here: *{button [https://qsurvey.mozilla.com/s3/FirefoxInput/ Submit your feedback and suggestions about Firefox]} -->