diff --git a/app/javascript/mastodon/features/ui/components/focal_point_modal.jsx b/app/javascript/mastodon/features/ui/components/focal_point_modal.jsx
index 6e8d017eee..6bf4add1a3 100644
--- a/app/javascript/mastodon/features/ui/components/focal_point_modal.jsx
+++ b/app/javascript/mastodon/features/ui/components/focal_point_modal.jsx
@@ -330,7 +330,7 @@ class FocalPointModal extends ImmutablePureComponent {
                     id='upload-modal__thumbnail'
                     ref={this.setFileInputRef}
                     type='file'
-                    accept='image/png,image/jpeg'
+                    accept='image/png,image/jpeg,image/webp,image/gif'
                     onChange={this.handleThumbnailChange}
                     style={{ display: 'none' }}
                     disabled={isUploadingThumbnail || is_changing_upload}