The following conditional tags marked with blue just before and after to hide the widget from specific pages in Blogger. For instance, if you want:

Showing Blogger widget only in post pages


<b:if cond="data:blog.pageType == "item""></b:if>
<!-- Here Is Your Content that you want to  show on Post Pages -->
</b:if>

Another Way to Show Blogger widget only in Pages


<b:if cond="data:view.isPage"></b:if>
<!-- Here Is Your Content that you want to  show on Pages -->
</b:if>

Another Way to Show Blogger widget only in Post


<b:if cond="data:view.isPost"></b:if>
<!-- Here Is Your Content that you want to  show on Post-->
</b:if>

Hiding Blogger widget in post pages


<b:if cond='data:blog.pageType!= "item"'>
<!-- Here is your content that you want to hide on post Pages -->
</b:if>
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