QR generator in Firefox for convenient subscription to podcasts by phone

It often happens that you find an interesting video or audio podcast, for example, on the recently announced mp4serial.ru , and you want to subscribe to this podcast. But in order to transfer the link to the phone, you have to copy the url, go to your favorite QR generator and generate the code, then scan it, etc.
I suggest to shorten this path a little, excluding copying, and just add the QR code generator to the drop-down list of offered services:


We will generate through google shortener. Open about: config and, by entering the "browser.contentHandlers.types" filter, see which one is the last:


I have the last 5, add 3 new parameters, increasing by 1 (type: string)
For audio podcasts:
browser.contentHandlers.types.6.title = QR code generator
browser.contentHandlers.types.6.type = application / vnd.mozilla.maybe.audio.feed
browser.contentHandlers.types.6.uri = http: //chart.apis.google.com/chart? cht = qr & chs = 300x300 & choe = UTF-8 & chld = H & chl =% s

For video podcasts, we create 3 more parameters:
browser.contentHandlers.types.7.title = QR generator
browser.contentHandlers.types.7.type = application / vnd.mozilla.maybe.video.feed
browser.contentHandlers.types.7.uri = http: //chart.apis.google.com/chart? cht = qr & chs = 300x300 & choe = UTF-8 & chld = H & chl =% s
')
Well, just in case for simple RSS:
browser.contentHandlers.types.8.title = QR generator
browser.contentHandlers.types.8.type = application / vnd.mozilla.maybe.feed
browser.contentHandlers.types.8.uri = http: //chart.apis.google.com/chart? cht = qr & chs = 300x300 & choe = UTF-8 & chld = H & chl =% s

By the way, by default, firefox does not offer at all what to subscribe to audio and video podcasts, except for adding to bookmarks. The above method can add a subscription to google reader or yndex.

PS: Someone for the generation of QR I use a special bookmark, who still do not have one, take it:
Create a bookmark, enter the address in the field:
javascript:location.href='http://chart.apis.google.com/chart?cht=qr&chs=300x300&choe=UTF-8&chld=H&chl='+escape(location.href)

UPD
aborche Proposed option to add a gerrenatoro to search providers: aborche.com
unnamed777 Prompted service 2qr.ru/, adding the address of which to the top of the URL in the browser line - we’ll get the same QR.