diff --git a/packages/@uppy/box/src/Box.jsx b/packages/@uppy/box/src/Box.jsx
index 93a202a1db..087ba8ade9 100644
--- a/packages/@uppy/box/src/Box.jsx
+++ b/packages/@uppy/box/src/Box.jsx
@@ -32,7 +32,7 @@ export default class Box extends UIPlugin {
       pluginId: this.id,
     })
 
-    this.defaultLocale = locale
+    this.defaultLocale = [this.provider.defaultLocale, locale]
 
     this.i18nInit()
     this.title = this.i18n('pluginNameBox')
diff --git a/packages/@uppy/companion-client/src/Provider.js b/packages/@uppy/companion-client/src/Provider.js
index 3fa017ff57..2d109b5ea7 100644
--- a/packages/@uppy/companion-client/src/Provider.js
+++ b/packages/@uppy/companion-client/src/Provider.js
@@ -2,6 +2,7 @@
 
 import RequestClient from './RequestClient.js'
 import * as tokenStorage from './tokenStorage.js'
+import locale from './locale.js'
 
 const getName = (id) => {
   return id.split('-').map((s) => s.charAt(0).toUpperCase() + s.slice(1)).join(' ')
@@ -39,6 +40,8 @@ export default class Provider extends RequestClient {
     this.tokenKey = `companion-${this.pluginId}-auth-token`
     this.companionKeysParams = this.opts.companionKeysParams
     this.preAuthToken = null
+
+    this.defaultLocale = locale
   }
 
   async headers () {
@@ -124,9 +127,9 @@ export default class Provider extends RequestClient {
         const data = typeof e.data === 'string' ? JSON.parse(e.data) : e.data
 
         if (data.error) {
-          const { uppy } = this
-          const message = uppy.i18n('authAborted')
-          uppy.info({ message }, 'warning', 5000)
+          const { i18n } = this.uppy.getPlugin(this.pluginId)
+          const message = i18n('authAborted')
+          this.uppy.info({ message }, 'warning', 5000)
           reject(new Error('auth aborted'))
         }
 
diff --git a/packages/@uppy/companion-client/src/locale.js b/packages/@uppy/companion-client/src/locale.js
new file mode 100644
index 0000000000..23392e5469
--- /dev/null
+++ b/packages/@uppy/companion-client/src/locale.js
@@ -0,0 +1,5 @@
+export default {
+  strings: {
+    authAborted: 'Authentication aborted',
+  },
+}
diff --git a/packages/@uppy/core/src/BasePlugin.js b/packages/@uppy/core/src/BasePlugin.js
index c802f97b74..e03b1450f4 100644
--- a/packages/@uppy/core/src/BasePlugin.js
+++ b/packages/@uppy/core/src/BasePlugin.js
@@ -41,7 +41,11 @@ export default class BasePlugin {
   }
 
   i18nInit () {
-    const translator = new Translator([this.defaultLocale, this.uppy.locale, this.opts.locale])
+    const translator = new Translator([
+      ...(Array.isArray(this.defaultLocale) ? this.defaultLocale : [this.defaultLocale]),
+      this.uppy.locale,
+      this.opts.locale,
+    ])
     this.i18n = translator.translate.bind(translator)
     this.i18nArray = translator.translateArray.bind(translator)
     this.setPluginState() // so that UI re-renders and we see the updated locale
diff --git a/packages/@uppy/core/src/Uppy.js b/packages/@uppy/core/src/Uppy.js
index c597c97efb..fdc26ceaf1 100644
--- a/packages/@uppy/core/src/Uppy.js
+++ b/packages/@uppy/core/src/Uppy.js
@@ -198,7 +198,10 @@ class Uppy {
   }
 
   i18nInit () {
-    const translator = new Translator([this.defaultLocale, this.opts.locale])
+    const translator = new Translator([
+      ...(Array.isArray(this.defaultLocale) ? this.defaultLocale : [this.defaultLocale]),
+      this.opts.locale,
+    ])
     this.i18n = translator.translate.bind(translator)
     this.i18nArray = translator.translateArray.bind(translator)
     this.locale = translator.locale
diff --git a/packages/@uppy/core/src/locale.js b/packages/@uppy/core/src/locale.js
index 16a18cf3a4..9a43be62fa 100644
--- a/packages/@uppy/core/src/locale.js
+++ b/packages/@uppy/core/src/locale.js
@@ -22,7 +22,6 @@ export default {
     noDuplicates:
       "Cannot add the duplicate file '%{fileName}', it already exists",
     companionError: 'Connection with Companion failed',
-    authAborted: 'Authentication aborted',
     companionUnauthorizeHint:
       'To unauthorize to your %{provider} account, please go to %{url}',
     failedToUpload: 'Failed to upload %{file}',
diff --git a/packages/@uppy/dropbox/src/Dropbox.jsx b/packages/@uppy/dropbox/src/Dropbox.jsx
index c591933087..fad309939f 100644
--- a/packages/@uppy/dropbox/src/Dropbox.jsx
+++ b/packages/@uppy/dropbox/src/Dropbox.jsx
@@ -29,7 +29,7 @@ export default class Dropbox extends UIPlugin {
       pluginId: this.id,
     })
 
-    this.defaultLocale = locale
+    this.defaultLocale = [this.provider.defaultLocale, locale]
 
     this.i18nInit()
     this.title = this.i18n('pluginNameDropbox')
diff --git a/packages/@uppy/facebook/src/Facebook.jsx b/packages/@uppy/facebook/src/Facebook.jsx
index f8ceac492e..e0eeaf0f23 100644
--- a/packages/@uppy/facebook/src/Facebook.jsx
+++ b/packages/@uppy/facebook/src/Facebook.jsx
@@ -32,7 +32,7 @@ export default class Facebook extends UIPlugin {
       pluginId: this.id,
     })
 
-    this.defaultLocale = locale
+    this.defaultLocale = [this.provider.defaultLocale, locale]
 
     this.i18nInit()
     this.title = this.i18n('pluginNameFacebook')
diff --git a/packages/@uppy/google-drive/src/GoogleDrive.jsx b/packages/@uppy/google-drive/src/GoogleDrive.jsx
index 96433c33ef..381dca7c28 100644
--- a/packages/@uppy/google-drive/src/GoogleDrive.jsx
+++ b/packages/@uppy/google-drive/src/GoogleDrive.jsx
@@ -43,7 +43,7 @@ export default class GoogleDrive extends UIPlugin {
       pluginId: this.id,
     })
 
-    this.defaultLocale = locale
+    this.defaultLocale = [this.provider.defaultLocale, locale]
 
     this.i18nInit()
     this.title = this.i18n('pluginNameGoogleDrive')
diff --git a/packages/@uppy/instagram/src/Instagram.jsx b/packages/@uppy/instagram/src/Instagram.jsx
index 7ba14fd33e..850b987ba4 100644
--- a/packages/@uppy/instagram/src/Instagram.jsx
+++ b/packages/@uppy/instagram/src/Instagram.jsx
@@ -28,11 +28,6 @@ export default class Instagram extends UIPlugin {
       </svg>
     )
 
-    this.defaultLocale = locale
-
-    this.i18nInit()
-    this.title = this.i18n('pluginNameInstagram')
-
     this.provider = new Provider(uppy, {
       companionUrl: this.opts.companionUrl,
       companionHeaders: this.opts.companionHeaders,
@@ -42,6 +37,11 @@ export default class Instagram extends UIPlugin {
       pluginId: this.id,
     })
 
+    this.defaultLocale = [this.provider.defaultLocale, locale]
+
+    this.i18nInit()
+    this.title = this.i18n('pluginNameInstagram')
+
     this.onFirstRender = this.onFirstRender.bind(this)
     this.render = this.render.bind(this)
   }
diff --git a/packages/@uppy/onedrive/src/OneDrive.jsx b/packages/@uppy/onedrive/src/OneDrive.jsx
index 6f4b939f56..d8548aceb2 100644
--- a/packages/@uppy/onedrive/src/OneDrive.jsx
+++ b/packages/@uppy/onedrive/src/OneDrive.jsx
@@ -34,7 +34,7 @@ export default class OneDrive extends UIPlugin {
       pluginId: this.id,
     })
 
-    this.defaultLocale = locale
+    this.defaultLocale = [this.provider.defaultLocale, locale]
 
     this.i18nInit()
     this.title = this.i18n('pluginNameOneDrive')
diff --git a/packages/@uppy/zoom/src/Zoom.jsx b/packages/@uppy/zoom/src/Zoom.jsx
index c7c3d392ba..2b0af4bb70 100644
--- a/packages/@uppy/zoom/src/Zoom.jsx
+++ b/packages/@uppy/zoom/src/Zoom.jsx
@@ -30,7 +30,7 @@ export default class Zoom extends UIPlugin {
       pluginId: this.id,
     })
 
-    this.defaultLocale = locale
+    this.defaultLocale = [this.provider.defaultLocale, locale]
 
     this.i18nInit()
     this.title = this.i18n('pluginNameZoom')