The social network, which turns 12 years old this week, has seen its fair share of successes: Messaging app WhatsApp, which it acquired in 2014 for $19 billion, recently hit the 1 billion users threshold, according to CEO Mark Zuckerberg. And Messenger, which it famously uncoupled from its flagship, reached 800 million users.\u00a0\nBut not all of Facebook\u2019s business decisions and product launches have been hits \u2013 and it\u2019s never shied away from failure. Facebook\u2019s at times questionable ethics led the social network to lawsuits, products and features fizzled and big bets fell flat. Here\u2019s a look at Facebook\u2019s most memorable missteps.\u00a0\n1. Facebook Beacon\u00a0\nIn 2007, the social network launched the first iteration of an ad platform, called Facebook Beacon. Beacon tracked users\u2019 activities on participating external websites, used the data to target ads and published users\u2019 activity on the sites to their news feeds without their consent. Facebook opted all users into this program, and did not provide any way to opt out.\u00a0\nBeacon immediately drew the ire of privacy advocates, which resulted in a class action lawsuit. Facebook ultimately terminated the Beacon program and created a $9.5 million fund for privacy and security, none of which was repaid to users.\u00a0\n2. Facebook Gifts\u00a0\nFacebook Gifts was the social network\u2019s first attempt at an online store: Users could pay to send icons to friends \u2014 anything from an image of a birthday cake to a slice of pizza \u2013 which would be displayed on users\u2019 profiles.\nThree years later, the social network announced it would close its gift shop, saying it planned to \u201cfocus more on improving and enhancing products and features that people use every day, such as photos, news feed, inbox, games, comments, the like button and the wall.\u201d\u00a0\n3. Facebook Lite\u00a0\nFor users who didn\u2019t want all of Facebook\u2019s bells and whistles, the social network launched a slimmed-down site called Facebook Lite in 2009. People could post on others\u2019 time lines, send and accept friend requests and update their status \u2013 but just eight months after announcing it, the social network shut it down.\u00a0\n\u201cThanks to everyone who tried out Facebook Lite,\u201d the company said in a status update on the site. \u201cWe are no longer supporting it, but learned a lot from the test of a slimmed-down site.\u201d\u00a0\n4. Facebook email addresses\u00a0\nMany thought that the launch of Facebook\u2019s @facebook.comemail address in 2010 signaled the end of Gmail. Facebook email addresses rolled out as part of the social network\u2019s \u201csocial inbox\u201d project \u2014 an effort to make Facebook into your communications platform of choice, from text and chat messages to email.\u00a0\nSince then, Facebook spun out Messenger into its own, highly successful app and Gmail is as popular as ever. Facebook email addresses, though \u2013 not so much.\u00a0\n5. Facebook shares home addresses\u00a0\nIn 2011, Facebook gave third-party apps and websites access to users\u2019 home addresses and mobile phone numbers that they shared on the social network. The move was intended to help users complete online forms using their Facebook information, but it was abused: Later that year, Facebook discovered some developers had sold that user information not marketing firms.\u00a0\n6. Facebook Deals\u00a0\nSocial deals \u2013 think Groupon and LivingSocial, for example \u2013 were big in 2011. To capitalize on that trend, Facebook launched its own product to compete. Called Facebook Deals, these offers debuted in five cities and let users make purchases on goods and experiences at steep discounts.\u00a0\nJust four months in, Facebook announced it would end the test. \u201cWe think there is a lot of power in a social approach to driving people into local businesses,\u201d it said. \u201cWe\u2019ve learned a lot from our test and we\u2019ll continue to evaluate how to best serve local businesses.\u201d\u00a0\n7. Facebook\u2019s IPO lawsuit\u00a0\nIn 2012, Facebook\u2019s IPO was investigated and compared to a \u201cpump and dump\u201d scheme \u2013 a form of stock fraud that involves artificially inflating the price through false and misleading positive statements.\u00a0\nA class-action lawsuit alleged that the Facebook financial officer communicated adjustments to earning statements to the underwriters, who used the information to cash out on their positions while leaving the public with overpriced shares.\u00a0\nBy the end of the month, Facebook\u2019s stock lost more than a quarter of its starting value, prompting many to call its IPO a failure.\u00a0\n8. HTML5\u00a0\nIn an interview in 2012 \u2013 the first after the company\u2019s IPO \u2013 Mark Zuckerberg admitted that the company focused too much on HTML5, referring to the original HTML5-powered Facebook apps, which were riddled with latency and other issues. Instead, the focus should have been on native apps, he said.\u00a0\n\u201cThe biggest mistake we made as a company was betting too much on HTML5 rather than native,\u201d he said. \u201cWe burned two years.\u201d\u00a0\n9. Facebook Home\u00a0\nThe social network unveiled Facebook Home, a user interface designed to replace the home screen on Android phones, in 2013. Facebook Home let users view and post content on Facebook, view notifications from Facebook and other apps, and allowed users to chat via the social network or SMS from any app.\u00a0\nFeedback on Facebook Home was mixed, with users complaining that its focus on its own social network was to the detriment of other apps not focused on social networking, while others cited privacy concerns due to Facebook\u2019s unprecedented access to user data on mobile devices.\u00a0\nA few months after its launch, Facebook announced it would make improvements to the app. This year, the interface was discontinued.\u00a0\n10. Glitch exposes 6 million users\u00a0\nIn 2013, Facebook inadvertently exposed 6 million users\u2019 phone numbers and email addresses to unauthorized viewers over the span of a year. The social network blamed the data breach on a technical glitch: Users who downloaded contact data for their list of friends also obtained contact information they were not supposed to have.\u00a0\n\u201cWe currently have no evidence that this bug has been exploited maliciously and we have not received any complaints from users or seen anomalous behavior on the tool or site to suggest wrongdoing,\u201d Facebook said in a blog post. \u201cIt\u2019s still something we\u2019re upset and embarrassed by, and we\u2019ll work doubly hard to make sure nothing like this happens again.\u201d\u00a0\n11. Creative Labs\u00a0\nCreative Labs was Facebook\u2019s two-year experiment that often showcased ideas developed during its popular internal hackathons. Often debuting as standalone apps, these ideas included the alternative news feed browser, Paper; Snapchat successor Slingshot; and Rooms, a reimagined chat room for mobile devices. None of Creative Labs\u2019 apps were particularly successful, and the social network announced in December that it ended the program.\u00a0\n12. Parse\u00a0\nTo the surprise of many developers, Facebook last month announced it would close Parse, a highly successful toolkit and support system for mobile developers.\u00a0\n\u201cWe know that many of you have come to rely on Parse, and we are striving to make this transition as straightforward as possible,\u201d said Kevin Laker, Parse cofounder, in a blog post. \u201cWe enjoyed working with each of you, and we have deep admiration for the things you\u2019ve built.\u201d\u00a0\nThe company acquired Parse in 2013.