Assertion: thunderbird | /r/CapableOf | validate new feed urls
Facets:
Source sentences:
text: Thunderbird will validate new feed urls and let you check for correct protocol syntax in an existing feed.
text: If a feed does not Validate in Thunderbird (for example, if it is a web page), it may, however, appear to be correct in the : Thunderbird will validate new feed urls and let you check for correct protocol syntax in an existing feed.