Traversing Bookmarks with WebExtensions

Add-ons Development
#1

Hi, I’ve been trying to develop a small extension to process bookmarks in a given folder, but without a lot of luck.

Since I’m new to WebExtensions (and only having a little previous experience with the legacy type) I thought I would start with trying to simply print out the list of bookmarks to the console and go from there.

I’m using chome.bookmarks, but the getTree method doesn’t seem to work - no errors. This bit of code is run from the background script.

function test_click(tab) {

    console.log("Testing from background script!");
    
    // Testing Bookmarks
    var bookmarks = chrome.bookmarks;
    //var bookmarks = browser.bookmarks;
    bookmarks.getTree(function (bookmarks2) {
    
        console.log(JSON.stringify(bookmarks2));
    });
}

// Handle button click
chrome.browserAction.onClicked.addListener(test_click);

It’s triggered by an icon on the toolbar.

The first console log message output works, but nothing appears underneath it. When I debug it, it just skips through, as if no bookmarks were found, or something along those lines. But there are a lot of bookmarks and folders.

Other items of importance: The bookmarks permission is present in the manifest.json. If I don’t include this permission, I do get errors.

The same piece of code actually works ok in Chrome. Any ideas?

Regards,

Daniel

#2

Try printing something like bookmarks2.length. Are you getting an empty array, undefined, something else? You should also check the Browser Console for any errors.

1 Like
#3

I just tried making a new test extension with just the essentials included - and now it works.

I’m not really sure why it wasn’t working before… It must have been something ill-defined in the manifest.json file.

Thanks for the suggestion anyway!

Daniel

#4

I have found that the callbacks should not be an inline function. Create a new function and put just the function name in the callback, and that seems to work for me.

#5

I am having a similar issue. Have you figured out what was the problem? Specifically?