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I have the following list

l = {{123, "style", "", "url", "TRUE", "TRUE", "TRUE"},
     {456, "style", "", "url", "TRUE", "True", "TRUE"},
     {789, "style", "", "url", "FALSE", "FALSE", "TRUE"},
     {112, "style", "", "url", "TRUE", "TRUE", "TRUE"},
     {223, "style", "", "url", "FALSE", "FALSE", "TRUE"}};

How can I select the ones that their 5th element is "FALSE" namely the output should look like:

{{789, "style", "", "url", "FALSE", "FALSE", "TRUE"},
 {223, "style", "", "url", "FALSE", "FALSE", "TRUE"}}
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There are lots of different ways. The most common ones would be:

Cases[l, {_, _, _, _, "FALSE", _, _}]

{{789, "style", "", "url", "FALSE", "FALSE", "TRUE"}, {223, "style", "", "url", "FALSE", "FALSE", "TRUE"}}

Select[l, #[[5]] == "FALSE" &]

{{789, "style", "", "url", "FALSE", "FALSE", "TRUE"}, {223, "style", "", "url", "FALSE", "FALSE", "TRUE"}}

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l//Pick[#, #[[All,5]], "FALSE"]&

{{789, style, , url, FALSE, FALSE, TRUE}, {223, style, , url, FALSE, FALSE, TRUE}}

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