If you like to store bookmarks in Yojimbo, my Bookmark in Yojimbo AppleScript, which I wrote for Safari, might come in handy. The script provides an alternate bookmark dialog that saves a bookmark for the current page directly into Yojimbo. You can also opt to display the new bookmark in Yojimbo if you would like to edit its other attributes.
More information (and any source updates) are available on my site -- including an already-compiled version of the script.
[robg adds: The source display shown here is stored on macosxhints.com. For the most up to date version of the code, visit the author's linked page.]
Recently, a hint was published on setting Safari-like shortcut keys for bookmarks in Firefox. I recently solved this problem a different way: using the built-in Keyboard Shortcuts sub-pane of the Keyboard & Mouse System Preferences panel. A nice feature of this is that if you set the shortcut for All Applications, as long as you have the same name for bookmarks in each application, you can use the same shortcuts for the same bookmarks in multiple browsers.
The Firefox extension Bookmark Keys will allow you to select bookmarks on your Firefox bookmarks toolbar using Control-[1 to 9]. Safari has had this feature for a long time, and I find it very useful. Now Firefox has it, too.
[robg adds: I generally don't run pointers to individual Firefox extensions as hints (mainly because there are so many of them, and everyone's needs will be different). However, given the popularity of Safari and the convenience of the feature, I though I'd run this one. The only downside that I see with the extension is that it doesn't add the shortcut next to the bookmark's name in the Bookmarks menu, so you'll have to remember what Control-7 opens -- this is more difficult if, like me, you have individual sites and folders intermingled on your bookmarks bar.]
Since Safari is so ubiquitous (think QuickSilver, Mail integration, etc.), I find it useful to store all my bookmarks there, and then just have my other browsers in sync by manually importing every now and again. This is especially true as I use DEVONagent, which is wonderful in many regards, but cannot bookmark on its own -- it can only display bookmarks imported from elsewhere.
Help requested: Preferably, I would like that all such bookmarks are all stored in one folder for each day, instead of a new folder for each bookmark sent to Safari; or maybe just one folder for all unfiled bookmarks -- let's call it "unfiled." Any ideas?
This isn't exactly a hint, per se, but a change from Firefox 1.5 to 2.0. In 1.x-1.5, holding down the Command key and using the scroll wheel would resize text on the current page.
Now, holding down Command forces the scroll to go line by line, no matter how fast the scroll wheel is turned. It's kind of hard to explain, but compare the two, and you'll see what I mean. Random, but useful if you use the scroll wheel to read documents and articles online like I do (keep your eyes in the same place, and just scroll the page.)
[robg adds: The old "zoom text via scroll" feature is still available, but you'll have to press Command and Control, then scroll, in order to get it. And as noted in my comment to this hint, Command and Option and scroll is the shortcut to flip between pages that have been loaded on one tab.]
Although you can't see a cursor when you click on text in Safari, it seems that one might be there. If you click on a position in a line of text in Safari, and then Shift-click somewhere else in the page's text, it will select all of the text from the first place you clicked to the place you Shift-clicked, despite the lack of a visible cursor. This makes selecting really big clumps of text a lot easier, as you can drag your scroll bar to get from one end of the selection to the other, rather than dragging the cursor and waiting for it to autoscroll. Just be sure not to click anywhere on the page between your first click and the Shift-click!
[kirkmc adds: This seems obvious, yet it probably isn't for many people. Since you can double-click a word to select it in Safari (as well as in other browsers), it stands to reason that there is a "cursor" there somewhere. You can also triple-click to select a paragraph.]
I'm not sure how useful this is, but I just discovered that if you have more than one Safari window open and, if you hold down the Command key and click on a link in a background window, the link opens in a tab in the frontmost window.
This is an interesting twist on the Command-click to open link in a new tab shortcut in Safari.
If you ever have a page open in one browser and want to open it in another browser, simply drag the URL (grabbing the favicon to the left of the URL is the easiest way) to an open spot in the tab bar (the tab bar needs to be visible to do this). If you want to overwrite another tab's page, drag it onto that tab. (You can also use this to duplicate tabs in the same browser.)
Dragging into Camino's toolbar is the same as Safari. Shiira always makes a new tab, no matter where you drag the URL. Firefox, Opera, and OmniWeb both behave the same as Safari and Camino.
[kirkmc adds: You can also simply drag the URL (whether from the favicon, the actual URL in the Address Bar, or any link) to a browser window to open the page. This is especially practical for web designers who need to view pages in different browsers.]
I'm not sure if anyone has tried this before, but if you have Firefox (I am using 2.0 beta) or Safari you can go to MSN's Web Messenger page and log into your MSN account from the browser. The site says that it is incompatible, but it worked fine for me with both browsers. This probably only would be important to people who cannot access their clients, but hopefully someone will find it useful.
On a side note, AIM Express works on Firefox but not Safari.
If you click on a link in Firefox with the third mouse button (the scroll wheel button), it will open that link directly into a new tab. You can also close tabs by clicking on them with the third mouse button. This is somthing I use all the time, and it's a huge timesaver.