You will need to install a user script manager extension to install this script.
ExtendRedTube remove ads and change the look of RedTube for better usage.
Some of the cool features:
Comments appreciated. Suggestions too.
Anonymous suggestions and bug reports for the shy
(If you're not shy, it's easier for me to check your comment here at GreasyFork).
Version 4.2 (2014 April 14) +Middle click on thumbs open link in new tab *Porstars page weird *Popup blocker not working *Ads not removed Version 4.1 (2014 March 05) +16:9 screen Version 4.0.1 (2014 January 19) *Fixed wrong quote Version 4.0 (2014 January 19) *Lot of changes to make it work again Version 3.3 (2013 November 02) *Fixed non-clickable volume & fullscreen buttons Version 3.2.2 (2013 July 07) *Fixed 'Center Video' button Version 3.2.1 (2013 July 07) *Fixed missing CSS Version 3.2 (2013 July 07) #New handling of CSS, faster injection +Popup blocker Version 3.1 (2013 June 04) +Included other redtube domains: .org, .cz, .es, .fr, .it, .kr, .pl, .si +Center video for HTML player *HTML player wrong placement #New way to deal with ads, removed from the DOM Version 3.0 (2013 June 03) #Total rework, no more jQuery, way more faster +Support for HTML player *Broken download links *Broken video tabs in Firefox *Broken video preview in video page Version 2.1 (2013 February 13) +Included some instructions for download #New way to deal with ads #Little code rearrange Version 2.0 (2013 January 22) +Button to center video in screen +Center video on page load #Thumbnail tab smarter, will check domains #Code optimization #jQuery updated to v1.9.0 Version 1.4 (2012 December 09) +New thumbnail tab #Larger related videos thumbs #jQuery updated to v1.8.3 #@run-at removed Version 1.3 (2012 November 30) *Some pages were not enlarging anymore Version 1.2 (2012 August 18) *Fixed wrong if() *Video page now works in Firefox *Login bar now shows the background correctly in all browsers Version 1.1 (2012 July 20) +Video Download links added in description *Login bar now shows the background correctly Version 1.0 (Unknown)