diff --git a/en/firefox/all.ftl b/en/firefox/all.ftl
index 63ada9a3c3..d0dddc22dd 100644
--- a/en/firefox/all.ftl
+++ b/en/firefox/all.ftl
@@ -6,13 +6,10 @@
# HTML page title. Replace "English (US)" with your local language.
firefox-all-download-the-firefox-v2 = Download { -brand-name-firefox } in English (US) and more than 90 other languages
-# Obsolete string (expires 2024-10-30)
-firefox-all-download-the-firefox = Download the { -brand-name-firefox-browser } in English (US) and more than 90 other languages
+
# HTML page description, also used as the introductory text.
firefox-all-everyone-deserves-access-v2 = Everyone deserves access to the internet — your language should never be a barrier. That’s why — with the help of dedicated volunteers around the world — we make { -brand-name-firefox } available in more than 90 languages.
-# Obsolete string (expires 2024-10-30)
-firefox-all-everyone-deserves-access = Everyone deserves access to the internet — your language should never be a barrier. That’s why — with the help of dedicated volunteers around the world — we make the { -brand-name-firefox-browser } available in more than 90 languages.
# Variables:
# $product_label (string) e.g. Firefox, Firefox Nightly
@@ -29,14 +26,8 @@ firefox-all-down-arrow = Choose from the list below
# Used as an accessible label for a help button. The text is replaced with a "?" icon.
firefox-all-get-help = Get help
-# Obsolete string (expires 2024-10-30)
-firefox-all-browser = Browser:
firefox-all-browser-v2 = 1. Browser:
-# Obsolete string (expires 2024-10-30)
-firefox-all-platform = Platform:
firefox-all-platform-v2 = 2. Platform:
-# Obsolete string (expires 2024-10-30)
-firefox-all-language = Language:
firefox-all-language-v2 = 3. Language:
firefox-all-download = 4. Download:
firefox-all-desktop = Desktop
diff --git a/en/firefox/features/adblocker.ftl b/en/firefox/features/adblocker.ftl
index 4b6295a874..e5063a6fd8 100644
--- a/en/firefox/features/adblocker.ftl
+++ b/en/firefox/features/adblocker.ftl
@@ -38,21 +38,6 @@ features-adblocker-ghostery-is-another-great = Ghostery is ano
# $attsr2 (string) - link to /firefox/mobile/android/ with other attributes
features-adblocker-these-extensions-work-beautifully = These extensions work beautifully on both { -brand-name-firefox } for desktop and Android.
-# Obsolete string (expires: 2024-11-18)
-# Variables:
-# $url (url) - link to https://addons.mozilla.org/firefox/addon/adblocker-ultimate/
-features-adblocker-theres-adblocker-ultimate = There’s AdBlocker Ultimate that gets rid of every single ad, but buyer beware. Some of your favorite newspapers and magazines rely on advertising. Too many people blocking their ads could put them out of business.
-
-# Obsolete string (expires: 2024-11-18)
-# Variables:
-# $url (url) - link to https://addons.mozilla.org/firefox/addon/popup-blocker/
-features-adblocker-popup-ads-are-the-worst = Popup ads are the worst. Block them with Popup Blocker and never deal with another annoying popup again.
-
-# Obsolete string (expires: 2024-11-18)
-# Variables:
-# $url (url) - link to https://addons.mozilla.org/firefox/addon/adblock-for-firefox/
-features-adblocker-one-of-the-most-popular = One of the most popular ad blockers for { -brand-name-chrome }, { -brand-name-safari } and { -brand-name-firefox } is AdBlock. Use it to block ads on { -brand-name-facebook }, { -brand-name-youtube } and { -brand-name-hulu }.
-
features-adblocker-create-a-tracker-free = Create a tracker-free zone with Content Blocking
# Variables:
diff --git a/en/firefox/nightly/whatsnew.ftl b/en/firefox/nightly/whatsnew.ftl
index c4c067d40d..0a24844b9e 100644
--- a/en/firefox/nightly/whatsnew.ftl
+++ b/en/firefox/nightly/whatsnew.ftl
@@ -22,10 +22,6 @@ nightly-whatsnew-this-is-a-good = This is a good time to thank you for helping u
# $twitter (url) - link to https://twitter.com/FirefoxNightly
nightly-whatsnew-if-you-want-to-v3 = If you want to know what’s happening around { -brand-name-nightly } and its community, reading our blog and following us on Mastodon or X are good starting points!
-# Variables:
-# $attrs (string) - link href and additional attributes
-# Obsolete string (expires: 2024-11-26)
-nightly-whatsnew-want-to-know-which-v2 = Want to know which platform features you could test on { -brand-name-nightly } and can’t see yet on other { -brand-name-firefox } channels? Then have a look at the Nightly Experiments preferences page.
# Variables:
# $attrs (string) - link href and additional attributes
nightly-whatsnew-want-to-know-which-v3 = Want to know which platform features you could test on { -brand-name-nightly } and can’t see yet on other { -brand-name-firefox } channels? Then have a look at the { -brand-name-firefox-labs } preferences page.
diff --git a/en/mozorg/newsletters.ftl b/en/mozorg/newsletters.ftl
index b3db212f2c..250876c4b5 100644
--- a/en/mozorg/newsletters.ftl
+++ b/en/mozorg/newsletters.ftl
@@ -119,15 +119,9 @@ newsletters-unlock-the-world-of-web = Unlock the world of web development with o
# Headline for https://www-dev.allizom.org/newsletter/firefox/
newsletters-make-the-most = Make the most out of { -brand-name-firefox }
-# Obsolete string (expires: 2024-11-01)
-newsletters-put-more-fox-in-your-inbox = Put more fox in your inbox.
-
# Subtitle for https://www-dev.allizom.org/newsletter/firefox/
newsletters-sign-up-to-receive-monthly = Sign up to receive monthly updates from { -brand-name-firefox } and internet trends that shape your life online.
-# Obsolete string (expires: 2024-11-01)
-newsletters-see-where-the-web-can-take = See where the Web can take you with monthly { -brand-name-firefox } tips, tricks and Internet intel.
-
newsletters-we-are-sorry-but-there = We are sorry, but there was a problem with our system. Please try again later!
newsletters-thanks-for-updating-your = Thanks for updating your email preferences.
newsletters-success-an-email-has-been-sent = Success! An email has been sent to you with your preference center link. Thanks!
diff --git a/en/navigation.ftl b/en/navigation.ftl
index 684990e156..5e04cb81e0 100644
--- a/en/navigation.ftl
+++ b/en/navigation.ftl
@@ -2,10 +2,4 @@
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at https://mozilla.org/MPL/2.0/.
-# Obsolete string (expires 2024-12-10)
-navigation-firefox-browser-for-mobile = { -brand-name-firefox-browser } for Mobile
-
-# Obsolete string (expires 2024-12-10)
-navigation-take-speed-privacy-and = Take speed, privacy and peace of mind with you. On { -brand-name-android } and { -brand-name-ios }.
-
navigation-sign-up = Sign Up
diff --git a/en/newsletter_form.ftl b/en/newsletter_form.ftl
index c5281718d2..69af23735f 100644
--- a/en/newsletter_form.ftl
+++ b/en/newsletter_form.ftl
@@ -25,14 +25,8 @@ newsletter-form-im-okay-with-mozilla = I’m okay with { -brand-name-mozilla } h
newsletter-form-we-will-only-send-v2 = We will only send you { -brand-name-mozilla }-related information. You can unsubscribe at any time.
-# Obsolete string (expires: 2024-11-01)
-newsletter-form-we-will-only-send = We will only send you { -brand-name-mozilla }-related information.
-
newsletter-form-we-will-only-send-firefox-v2 = We will only send you { -brand-name-firefox }-related information. You can unsubscribe at any time.
-# Obsolete string (expires: 2024-11-01)
-newsletter-form-we-will-only-send-firefox = We will only send you { -brand-name-firefox }-related information.
-
newsletter-form-if-you-havent-previously = If you haven’t previously confirmed a subscription to a { -brand-name-mozilla }-related newsletter, you may have to do so. Please check your inbox or your spam filter for an email from us.
newsletter-form-firefox-and-you = { -brand-name-firefox } + You
newsletter-form-get-firefox-tips = Get { -brand-name-firefox } tips, tricks, news and more