Review for RequestPolicy by bluonek
Rated 5 out of 5 stars
Easy way to make compatible with FF 38 and beyond (and don't waste time with "RequestPolicy Continued" - it sucks)
1.) Find "requestpolicy@requestpolicy.com.xpi" in your FF folder
2.) Rename the xpi to zip and extract it with your favorite unarchiving software
3.) Find the install.rdf file and open it in a text editor
4.) Change the following line:
<em:maxVersion>38</em:maxVersion>
To this:
<em:maxVersion>50</em:maxVersion>
5.) Save the file and zip the whole folder again
6.) Rename the zip into xpi and restart FF
To create your own collections, you must have a Mozilla Add-ons account.