The icon will automatically be set to the favicon of the domain when the search engine is added - make sure that you've visited the site first to add it.
If you've already added the site, you can visit the page and then edit the search engine, which ...
All search engines can specify that they provide search suggestions if appropriate. However, not all search engines do - it is up to the individual search engine to provide suggestions, not your browser.
Firefox supports the same standard for search ...
Firefox already has this, within the address bar type "@tabs " or "% " and then type your query. You can also access it from the list all tabs drop-down at the end of the toolbar and selecting "Search All Tabs".
You can already do this with bookmark keywords:
https://support.mozilla.org/en-US/kb/bookmarks-firefox#w_how-to-use-keywords-with-bookmarks
You do not need a %s in the URL, you just need to add the keyword.
"Search engines" are the wrong mechanism a...
> Even I'm really fed up with this new option of deleting history by clicking on each website manually to delete it from firefox.
As I have described above, if you're in the address bar or search bar you can use shift-delete to remove the item.
If th...