[ 1 ] Google Plus icon not sharing - I have checked the gplus icon.. But It's working fine... Kindly Please Raise The Issue On https://github.com/shivarajnaidu/URL-sharer/issues with screenshots and with steps to reproduce the issue.

[ 2 ] Secondly you really need to add in a Tumblr share icon. -- Sure - thanks For suggestion . Will Add in next version

[ 3 ] Thirdly, perhaps consider allowing us, the end user, to remove service icons we are not using. - These Changes Also Will Be Implemented In Next Release

Once Again Thanks For Your Valuable Comments.. If You Would Like To Contribute Please Drop a PR At https://github.com/shivarajnaidu/URL-sharer