It works with the latest release of Firefox, however it works only 50% of what I expected. What I want is when I clicked a link in google search result, I want it to open the link in new tab and loads that new tab in the background AND it must stay in the same page because every time I always open 4-5 links at the time when google gave me the search results and that I don't want to wait for new tabs to loads in front of me because my internet is slow and I can't do anything while the new tab is loading, but this extension just open new tab and switch to it immediately with a blank page and the page just keep loading blank... which is a bit annoying to me.