diff --git a/app/mailers/user_mailer.rb b/app/mailers/user_mailer.rb
index 3b4d4d076..64ca92a3a 100644
--- a/app/mailers/user_mailer.rb
+++ b/app/mailers/user_mailer.rb
@@ -7,9 +7,10 @@ class UserMailer < Devise::Mailer
   def confirmation_instructions(user, token, _opts = {})
     @resource = user
     @token    = token
+    @instance = Rails.configuration.x.local_domain
 
     I18n.with_locale(@resource.locale || I18n.default_locale) do
-      mail to: @resource.unconfirmed_email.blank? ? @resource.email : @resource.unconfirmed_email
+      mail to: @resource.unconfirmed_email.blank? ? @resource.email : @resource.unconfirmed_email, subject: I18n.t('devise.mailer.confirmation_instructions.subject', instance: @instance)
     end
   end
 
@@ -18,7 +19,7 @@ class UserMailer < Devise::Mailer
     @token    = token
 
     I18n.with_locale(@resource.locale || I18n.default_locale) do
-      mail to: @resource.email
+      mail to: @resource.email, subject: I18n.t('devise.mailer.reset_password_instructions.subject')
     end
   end
 
@@ -26,7 +27,7 @@ class UserMailer < Devise::Mailer
     @resource = user
 
     I18n.with_locale(@resource.locale || I18n.default_locale) do
-      mail to: @resource.email
+      mail to: @resource.email, subject: I18n.t('devise.mailer.password_change.subject')
     end
   end
 end
diff --git a/app/views/admin/reports/index.html.haml b/app/views/admin/reports/index.html.haml
index 9c5c78935..68dc07016 100644
--- a/app/views/admin/reports/index.html.haml
+++ b/app/views/admin/reports/index.html.haml
@@ -1,12 +1,12 @@
 - content_for :page_title do
-  Reports
+  = t('reports.reports')
 
 .filters
   .filter-subset
-    %strong Status
+    %strong= t('reports.status')
     %ul
-      %li= filter_link_to 'Unresolved', action_taken: nil
-      %li= filter_link_to 'Resolved', action_taken: '1'
+      %li= filter_link_to t('reports.unresolved'), action_taken: nil
+      %li= filter_link_to t('reports.resolved'), action_taken: '1'
 
 = form_tag do
 
@@ -14,10 +14,10 @@
     %thead
       %tr
         %th
-        %th ID
-        %th Target
-        %th Reported by
-        %th Comment
+        %th= t('reports.id')
+        %th= t('reports.target')
+        %th= t('reports.reported_by')
+        %th= t('reports.comment.label')
         %th
     %tbody
       - @reports.each do |report|
@@ -27,6 +27,6 @@
           %td= link_to report.target_account.acct, admin_account_path(report.target_account.id)
           %td= link_to report.account.acct, admin_account_path(report.account.id)
           %td= truncate(report.comment, length: 30, separator: ' ')
-          %td= table_link_to 'circle', 'View', admin_report_path(report)
+          %td= table_link_to 'circle', t('reports.view'), admin_report_path(report)
 
 = paginate @reports
diff --git a/app/views/admin/reports/show.html.haml b/app/views/admin/reports/show.html.haml
index caa8415df..1143c2c2e 100644
--- a/app/views/admin/reports/show.html.haml
+++ b/app/views/admin/reports/show.html.haml
@@ -1,18 +1,19 @@
 - content_for :page_title do
-  = "Report ##{@report.id}"
+  = t('reports.report', id: @report.id)
 
 .report-accounts
   .report-accounts__item
-    %strong Reported account:
+    %strong= t('reports.reported_account')
     = render partial: 'authorize_follow/card', locals: { account: @report.target_account }
   .report-accounts__item
-    %strong Reported by:
+    %strong= t('reports.reported_by')
     = render partial: 'authorize_follow/card', locals: { account: @report.account }
 
 %p
-  %strong Comment:
+  %strong= t('reports.comment.label')
+  \:
   - if @report.comment.blank?
-    None
+    = t('reports.comment.none')
   - else
     = @report.comment
 
@@ -24,7 +25,7 @@
       .activity-stream.activity-stream-headless
         .entry= render partial: 'stream_entries/simple_status', locals: { status: status }
       .report-status__actions
-        = link_to remove_admin_report_path(@report, status_id: status.id), method: :post, class: 'icon-button', style: 'font-size: 24px; width: 24px; height: 24px', title: 'Delete' do
+        = link_to remove_admin_report_path(@report, status_id: status.id), method: :post, class: 'icon-button', style: 'font-size: 24px; width: 24px; height: 24px', title: t('reports.delete') do
           = fa_icon 'trash'
 
 - if !@report.action_taken?
@@ -32,10 +33,10 @@
 
   %div{ style: 'overflow: hidden' }
     %div{ style: 'float: right' }
-      = link_to 'Silence account', silence_admin_report_path(@report), method: :post, class: 'button'
-      = link_to 'Suspend account', suspend_admin_report_path(@report), method: :post, class: 'button'
+      = link_to t('reports.silence_account'), silence_admin_report_path(@report), method: :post, class: 'button'
+      = link_to t('reports.suspend_account'), suspend_admin_report_path(@report), method: :post, class: 'button'
     %div{ style: 'float: left' }
-      = link_to 'Mark as resolved', resolve_admin_report_path(@report), method: :post, class: 'button'
+      = link_to t('reports.mark_as_resolved'), resolve_admin_report_path(@report), method: :post, class: 'button'
 - elsif !@report.action_taken_by_account.nil?
   %hr/
 
diff --git a/app/views/admin/settings/index.html.haml b/app/views/admin/settings/index.html.haml
index 02faac8c2..b00e75a16 100644
--- a/app/views/admin/settings/index.html.haml
+++ b/app/views/admin/settings/index.html.haml
@@ -1,52 +1,40 @@
 - content_for :page_title do
-  Site Settings
+  = t('admin.settings.title')
 
 %table.table
   %colgroup
     %col{ width: '35%' }/
   %thead
     %tr
-      %th Setting
-      %th Click to edit
+      %th= t('admin.settings.setting')
+      %th= t('admin.settings.click_to_edit')
   %tbody
     %tr
       %td{ rowspan: 2 }
-        %strong Contact information
-      %td= best_in_place @settings['site_contact_username'], :value, url: admin_setting_path(@settings['site_contact_username']), place_holder: 'Enter a username'
+        %strong= t('admin.settings.contact_information.label')
+      %td= best_in_place @settings['site_contact_username'], :value, url: admin_setting_path(@settings['site_contact_username']), place_holder: t('admin.settings.contact_information.username')
     %tr
-      %td= best_in_place @settings['site_contact_email'], :value, url: admin_setting_path(@settings['site_contact_email']), place_holder: 'Enter a public e-mail address'
+      %td= best_in_place @settings['site_contact_email'], :value, url: admin_setting_path(@settings['site_contact_email']), place_holder: t('admin.settings.contact_information.email')
     %tr
       %td
-        %strong Site title
+        %strong= t('admin.settings.site_title')
       %td= best_in_place @settings['site_title'], :value, url: admin_setting_path(@settings['site_title'])
     %tr
       %td
-        %strong Site description
-        %br/
-        Displayed as a paragraph on the frontpage and used as a meta tag.
-        %br/
-        You can use HTML tags, in particular
-        %code= '<a>'
-        and
-        %code= '<em>'
+        %strong= t('admin.settings.site_description.title')
+        %p= t('admin.settings.site_description.desc_html')
       %td= best_in_place @settings['site_description'], :value, as: :textarea, url: admin_setting_path(@settings['site_description'])
     %tr
       %td
-        %strong Extended site description
-        %br/
-        Displayed on extended information page
-        %br/
-        You can use HTML tags
+        %strong= t('admin.settings.site_description_extended.title')
+        %p= t('admin.settings.site_description_extended.desc_html')
       %td= best_in_place @settings['site_extended_description'], :value, as: :textarea, url: admin_setting_path(@settings['site_extended_description'])
     %tr
       %td
-        %strong Open registration
-      %td= best_in_place @settings['open_registrations'], :value, as: :checkbox, collection: { false: 'Disabled', true: 'Enabled'}, url: admin_setting_path(@settings['open_registrations'])
+        %strong= t('admin.settings.registrations.open.title')
+      %td= best_in_place @settings['open_registrations'], :value, as: :checkbox, collection: { false: t('admin.settings.registrations.open.disabled'), true: t('admin.settings.registrations.open.enabled')}, url: admin_setting_path(@settings['open_registrations'])
     %tr
       %td
-        %strong Closed registration message
-        %br/
-        Displayed on frontpage when registrations are closed
-        %br/
-        You can use HTML tags
+        %strong= t('admin.settings.registrations.closed_message.title')
+        %p= t('admin.settings.registrations.closed_message.desc_html')
       %td= best_in_place @settings['closed_registrations_message'], :value, as: :textarea, url: admin_setting_path(@settings['closed_registrations_message'])
diff --git a/app/views/errors/404.html.haml b/app/views/errors/404.html.haml
index ba1d5f72d..5ffba3ca9 100644
--- a/app/views/errors/404.html.haml
+++ b/app/views/errors/404.html.haml
@@ -1,5 +1,5 @@
 - content_for :page_title do
-  The page you were looking for doesn't exist
+  = t('errors.404')
 
 - content_for :content do
-  The page you were looking for doesn't exist
+  = t('errors.404')
\ No newline at end of file
diff --git a/app/views/errors/410.html.haml b/app/views/errors/410.html.haml
index 07cf3742f..627c65583 100644
--- a/app/views/errors/410.html.haml
+++ b/app/views/errors/410.html.haml
@@ -1,5 +1,5 @@
 - content_for :page_title do
-  The page you were looking for doesn't exist anymore
+  = t('errors.410')
 
 - content_for :content do
-  The page you were looking for doesn't exist anymore
+  = t('errors.410')
diff --git a/app/views/errors/422.html.haml b/app/views/errors/422.html.haml
index e369cded6..e710fecb3 100644
--- a/app/views/errors/422.html.haml
+++ b/app/views/errors/422.html.haml
@@ -1,5 +1,5 @@
 - content_for :page_title do
-  Security verification failed
+  = t('errors.422.title')
 
 - content_for :content do
-  Security verification failed. Are you blocking cookies?
+  = t('errors.422.content')
diff --git a/app/views/user_mailer/confirmation_instructions.en.html.erb b/app/views/user_mailer/confirmation_instructions.en.html.erb
index 69e9ff80f..f28a38be2 100644
--- a/app/views/user_mailer/confirmation_instructions.en.html.erb
+++ b/app/views/user_mailer/confirmation_instructions.en.html.erb
@@ -1,5 +1,12 @@
-<p>Welcome <%= @resource.email %>!</p>
+<p>Welcome <%= @resource.email %> !</p>
 
-<p>You can confirm your Mastodon account email through the link below:</p>
+<p>You just created an account on <%= @instance %>.</p>
 
-<p><%= link_to 'Confirm my account', confirmation_url(@resource, confirmation_token: @token) %></p>
+<p>To confirm your inscription, please click on the following link : <br>
+<%= link_to 'Confirm my account', confirmation_url(@resource, confirmation_token: @token) %>
+
+<p>Please also check out our <%= link_to 'terms and conditions', terms_url %>.</p>
+
+<p>Sincerely,<p>
+
+<p>The <%= @instance %> team</p>
\ No newline at end of file
diff --git a/app/views/user_mailer/confirmation_instructions.en.text.erb b/app/views/user_mailer/confirmation_instructions.en.text.erb
index bb21cf8e2..0419adef0 100644
--- a/app/views/user_mailer/confirmation_instructions.en.text.erb
+++ b/app/views/user_mailer/confirmation_instructions.en.text.erb
@@ -1,5 +1,12 @@
-Welcome <%= @resource.email %>!
+Welcome <%= @resource.email %> !
 
-You can confirm your Mastodon account email through the link below:
+You just created an account on <%= @instance %>.
 
+To confirm your inscription, please click on the following link :
 <%= confirmation_url(@resource, confirmation_token: @token) %>
+
+Please also check out our terms and conditions <%= terms_url %>
+
+Sincerely,
+
+The <%= @instance %> team
\ No newline at end of file
diff --git a/app/views/user_mailer/confirmation_instructions.fr.html.erb b/app/views/user_mailer/confirmation_instructions.fr.html.erb
index 6c45f1a21..b0b3d0f51 100644
--- a/app/views/user_mailer/confirmation_instructions.fr.html.erb
+++ b/app/views/user_mailer/confirmation_instructions.fr.html.erb
@@ -1,5 +1,14 @@
-<p>Bienvenue <%= @resource.email %>&nbsp;!</p>
+<p>Bonjour <%= @resource.email %>&nbsp;!<p>
 
-<p>Vous pouvez confirmer le courriel de votre compte Mastodon en cliquant sur le lien ci-dessous&nbsp;:</p>
+<p>Vous venez de vous créer un compte sur <%= @instance %> et nous vous en remercions :)</p>
 
-<p><%= link_to 'Confirmer mon compte', confirmation_url(@resource, confirmation_token: @token) %></p>
+<p>Pour confirmer votre inscription, merci de cliquer sur le lien suivant : <br>
+<%= link_to 'Confirmer mon compte', confirmation_url(@resource, confirmation_token: @token) %></p>
+
+<p>Après votre première connexion, vous pourrez accéder à la documentation de l'outil.</p>
+
+<p>Pensez également à jeter un œil à nos <%= link_to 'conditions d\'utilisation', terms_url %>.</p>
+
+<p>Amicalement,</p>
+
+<p>L'équipe <%= @instance %></p>
\ No newline at end of file
diff --git a/app/views/user_mailer/confirmation_instructions.fr.text.erb b/app/views/user_mailer/confirmation_instructions.fr.text.erb
index dfa3f9f7c..cf8e39689 100644
--- a/app/views/user_mailer/confirmation_instructions.fr.text.erb
+++ b/app/views/user_mailer/confirmation_instructions.fr.text.erb
@@ -1,5 +1,14 @@
-Bienvenue <%= @resource.email %> !
+Bonjour <%= @resource.email %> !
 
-Vous pouvez confirmer le courriel de votre compte Mastodon en cliquant sur le lien ci-dessous :
+Vous venez de vous créer un compte sur <%= @instance %> et nous vous en remercions.
 
+Pour confirmer votre inscription, merci de cliquer sur le lien suivant :
 <%= confirmation_url(@resource, confirmation_token: @token) %>
+
+Après votre première connexion, vous pourrez accéder à la documentation de l'outil.
+
+Pour rappel, nos conditions d'utilisation sont indiquées ici <%= terms_url %>
+
+Amicalement,
+
+L'équipe <%= @instance %>
\ No newline at end of file
diff --git a/config/locales/devise.en.yml b/config/locales/devise.en.yml
index 442e70d51..b9204b59c 100644
--- a/config/locales/devise.en.yml
+++ b/config/locales/devise.en.yml
@@ -17,7 +17,7 @@ en:
       unconfirmed: You have to confirm your email address before continuing.
     mailer:
       confirmation_instructions:
-        subject: 'Mastodon: Confirmation instructions'
+        subject: 'Mastodon: Confirmation instructions for %{instance}'
       password_change:
         subject: 'Mastodon: Password changed'
       reset_password_instructions:
diff --git a/config/locales/devise.fr.yml b/config/locales/devise.fr.yml
index a986113e2..d1dae7c32 100644
--- a/config/locales/devise.fr.yml
+++ b/config/locales/devise.fr.yml
@@ -17,13 +17,13 @@ fr:
       unconfirmed: Vous devez valider votre compte pour continuer.
     mailer:
       confirmation_instructions:
-        subject: Instructions de confirmation
+        subject: "Merci de confirmer votre inscription sur %{instance}"
       password_change:
         subject: Votre mot de passe a été modifié avec succés.
       reset_password_instructions:
-        subject: Instructions pour modifier le mot de passe
+        subject: Instructions pour changer votre mot de passe
       unlock_instructions:
-        subject: Instructions pour déverrouiller le compte
+        subject: Instructions pour déverrouiller votre compte
     omniauth_callbacks:
       failure: 'Nous n''avons pas pu vous authentifier via %{kind} : ''%{reason}''.'
       success: Authentifié avec succès via %{kind}.
diff --git a/config/locales/en.yml b/config/locales/en.yml
index 6c4738991..802db148c 100644
--- a/config/locales/en.yml
+++ b/config/locales/en.yml
@@ -170,3 +170,54 @@ en:
   users:
     invalid_email: The e-mail address is invalid
     invalid_otp_token: Invalid two-factor code
+  will_paginate:
+    page_gap: "&hellip;"
+  errors:
+      404: The page you were looking for doesn't exist.
+      410: The page you were looking for doesn't exist anymore.
+      422:
+        title: Security verification failed
+        content: Security verification failed. Are you blocking cookies?
+  reports:
+    reports: Reports
+    status: Status
+    unresolved: Unresolved
+    resolved: Resolved
+    id: ID
+    target: Target
+    reported_by: Reported by
+    comment:
+      label: Comment
+      none: None
+    view: View
+    report: "Report #%{id}"
+    delete: Delete
+    reported_account: Reported account
+    reported_by: Signalé par
+    silence_account: Silence account
+    suspend_account: Suspend account
+    mark_as_resolved: Mark as resolved
+  admin:
+    settings:
+      title: Site Settings
+      setting: Setting
+      click_to_edit: Click to edit
+      contact_information:
+        label: Contact information
+        username: Enter a username
+        email: Enter a public e-mail address
+      site_title: Site title
+      site_description:
+        title: Site description
+        desc_html: "Displayed as a paragraph on the frontpage and used as a meta tag.<br>You can use HTML tags, in particular <code>&lt;a&gt;</code> and <code>&lt;em&gt;</code>."
+      site_description_extended:
+        title: Extended site description
+        desc_html: "Displayed on extended information page<br>You can use HTML tags"
+      registrations:
+        open:
+          title: Open registration
+          enabled: Enabled
+          disabled: Disabled
+        closed_message:
+          title: Closed registration message
+          desc_html: "Displayed on frontpage when registrations are closed<br>You can use HTML tags"
diff --git a/config/locales/fr.yml b/config/locales/fr.yml
index 92cf43944..86dc13d5a 100644
--- a/config/locales/fr.yml
+++ b/config/locales/fr.yml
@@ -167,3 +167,54 @@ fr:
   users:
     invalid_email: L'adresse courriel est invalide
     invalid_otp_token: Le code d'authentification à deux facteurs est invalide
+  will_paginate:
+    page_gap: "&hellip;"
+  errors:
+    404: La page que vous recherchez n'existe pas.
+    410: La page que vous recherchez n'existe plus.
+    422:
+      title: Vérification de sécurité échouée
+      content: Vérification de sécurité échouée. Bloquez-vous les cookies ?
+  reports:
+    reports: Signalements
+    status: Statut
+    unresolved: Non résolus
+    resolved: Résolus
+    id: ID
+    target: Cible
+    reported_by: Signalé par
+    comment:
+      label: Commentaire
+      none: Aucun
+    view: Voir
+    report: "Signalement #%{id}"
+    delete: Supprimer
+    reported_account: Compte signalé
+    reported_by: Signalé par
+    silence_account: Rendre le compte muet
+    suspend_account: Suspendre le compte
+    mark_as_resolved: Marqué comme résolu
+  admin:
+    settings:
+      title: Paramètres du site
+      setting: Paramètre
+      click_to_edit: Cliquez pour éditer
+      contact_information:
+        label: Informations de contact
+        username: Entrez un nom d'utilisateur
+        email: Entrez une adresse courriel publique
+      site_title: Titre du site
+      site_description:
+        title: Description du site
+        desc_html: "Affichée sous la forme d'un paragraphe sur la page d'accueil et utilisée comme balise meta.<br>Vous pouvez utiliser des balises HTML, en particulier <code>&lt;a&gt;</code> et <code>&lt;em&gt;</code>."
+      site_description_extended:
+        title: Description étendue du site
+        desc_html: "Affichée sur la page d'informations complémentaires du site<br>Vous pouvez utiliser des balises HTML"
+      registrations:
+        open:
+          title: Inscriptions
+          enabled: Activées
+          disabled: Désactivées
+        closed_message:
+          title: Message de fermeture des inscriptions
+          desc_html: "Affiché sur la page d'accueil lorsque les inscriptions sont fermées<br>Vous pouvez utiliser des balises HTML"