Some website make downloads open in a new page, so after you download a blank page will ramain open. This firefox extension allow to make all downloads to be launched directly. Disable Targets For Downloads remove the target link for those extensions .zip .rar .exe .tar .jar .xpi .gzip .gz .ace .bin .doc .xls .mdb .ppt .iso .7z .cab .arj .lzh .uue.

You can also customise this extension to add or remove extensions by using the provided extension settings dialog. If you prefer, you can also access these settings by typing about:config into the address bar, finding the “disabletarget.extensions” preference, and changing the value. There must be a space between each extension that you add, but the extensions can be any length needed. Note: dont insert the dot ( . ) before any additions.