Hi please upgrade gerrit to 2.11. It is only a few months till gerrit is switched to phabricator but this change is big and even though it has schema changes this change will be very usful for users who do not want to use ssh yet.
Please read release notes at https://gerrit-documentation.storage.googleapis.com/ReleaseNotes/ReleaseNotes-2.11.html
The main change is that you can now edit files and add them and delete them in the browser.
This new update to gerrit will deprecate the gerrit uploader that Wikimedia created for users to upload patches without having to use ssh them selfs. because they can now edit in the browser. But what this new update does is remove the old screen and new screen now default.