Changelog:

Tor Browser 7.0.7 -- October 19 2017
* All Platforms
* Update Firefox to 52.4.1esr
* Update Torbutton to 1.9.7.8
* Bug 23887: Update banner locales and Mozilla text
* Bug 23526: Add 2017 Donation banner text
* Bug 23483: Donation banner on about:tor for 2017 (testing mode)
* Bug 22610: Avoid crashes when canceling external helper app related downloads
* Bug 22472: Fix FTP downloads when external helper app dialog is shown
* Bug 22471: Downloading pdf files via the PDF viewer download button is broken
* Bug 22618: Downloading pdf file via file:/// is stalling
* Translations update
* Update HTTPS-Everywhere to 2017.10.4
* Update NoScript to 5.1.2

* Bug 23723: Loading entities from NoScript .dtd files is blocked
* Bug 23724: NoScript update breaks Security Slider and its icon disappears
* Bug 23745: Tab crashes when using Tor Browser to access Google Drive
* Bug 22610: Avoid crashes when canceling external helper app related downloads
* Bug 22472: Fix FTP downloads when external helper app dialog is shown
* Bug 22471: Downloading pdf files via the PDF viewer download button is broken
* Bug 22618: Downloading pdf file via file:/// is stalling
* Bug 23694: Update the detailsURL in update responses
* OS X
* Bug 23807: Tab crashes when playing video on High Sierra