Microsoft Edge is stripping out the ability to pin custom websites and apps to its sidebar, a move confirmed on May 6, 2026, by Windows Central. The browser’s once-flexible side rail, which until now let users dock Gmail, Twitter, Spotify, or any other service right next to their main browsing window, will no longer accept user-defined pins. What remains? Copilot. Microsoft’s AI assistant will become the primary—and for many, the only—persistent sidebar companion, a decision that shifts Edge’s side panel from a user-configurable toolbelt to a dedicated surface for Microsoft’s own services.

It’s a strategic U-turn for a feature that was, just four years ago, positioned as a standout reason to switch to Edge. When the sidebar arrived in 2022, it promised multitasking without tab clutter. You could keep a messaging app, a to-do list, or even YouTube music playback running alongside any webpage. Power users built elaborate sidebar setups, pinning ten or more sites. Now, that flexibility is being replaced by a locked-down pane anchored around search, shopping, and AI chat—functions Microsoft monetizes or controls.

What’s Actually Being Removed

The change focuses on user-pinned apps—the custom shortcuts that let you add any URL to the sidebar. Microsoft has not announced the removal of the entire sidebar infrastructure; the panel itself will persist, and built-in tools like the Discover feed, search, the Games menu, and productivity hubs (such as the Microsoft 365 launcher) will remain. What’s gone is the “+ pin” option that let users type in an address and turn any site into a persistent sidebar app. Existing pinned apps will eventually stop functioning, though Microsoft has not yet shared a sunset timeline. A grace period is expected, with users encouraged to transition to vertical tabs or the tab groups feature as alternatives.

The timing aligns with Edge’s broader 2026 redesign, which introduces a more minimalistic address bar and thinner window borders. Developers familiar with the browser’s roadmap note that the pinned-app code path was costly to maintain. It required Edge to treat sidebar apps as isolated mini-browsers, each with its own cookie jar, notifications, and rendering context. That overhead regularly surfaced in bug reports: pinned Twitter clients would occasionally break when Edge updated its WebView2 runtime, while video-heavy apps like YouTube or Twitch caused memory bloat when left running for hours.

Copilot: The Anchor of the New Sidebar

Copilot, originally Bing Chat and then rebranded in late 2023, now anchors the sidebar experience. By mid-2025, Copilot had been granted deeper hooks into the browser itself—it can summarize open pages, generate comparisons from selected text, and even fill out forms. Keeping it prominent aligns with Microsoft’s corporate strategy to embed AI assistants into every surface of Windows and Office.

Windows Central’s report explicitly noted that Copilot will be “spared” from the retirement, and internal presentations shown to partners reveal a long-term goal of making the sidebar an ever-present AI portal. Screenshots shared with the press depict a sidebar that defaults to Copilot chat, with tabs for a “Shop” panel (powered by Bing Shopping) and a “Read Later” list that syncs across devices. Missing from those mockups: any generic “+ pin” button. Users will no longer add their own destinations.

This move raises a fundamental question: If Edge is shedding features to combat bloat, why does the one feature staying occupy more memory and system resources than most custom apps ever did? Copilot’s UI alone is a fully rendered web app, and its backend connects to multiple Microsoft APIs. Benchmark tests conducted by enthusiast communities in late 2025 showed that launching Copilot in the sidebar consumed roughly 220 MB of RAM, while a pinned Google Calendar instance averaged just 90 MB. Even the Copilot “Draft” feature, which rewrites text, loads a specialized language model that can spike memory usage by another 150 MB. For users on 8 GB or 16 GB machines, that overhead stings.

The Bloat Debate Goes Mainstream

Edge’s reputation for feature bloat has been a familiar complaint since the browser’s Chromium reboot in 2020. Microsoft layered on shopping tools, a news feed, Microsoft Rewards integrations, Collections, vertical tabs, and the sidebar itself—often enabled by default. In user forums and on Reddit, the browser is regularly called “the new Internet Explorer,” not for compatibility issues but for its perceived excess.

Removing user-pinned apps could be read as a concession: Microsoft trimming a feature that, according to internal data, only 3% of monthly active users ever configured. In the same breath, however, keeping Copilot betrays a product philosophy not about reducing clutter but about consolidating control. The sidebar becomes less a toolbox and more a billboard: Microsoft’s own services secured front-row while third-party alternatives are shoved to less accessible corners.

Power users reacted quickly. A thread on the r/MicrosoftEdge subreddit labeled the change “the final straw,” and commenters began listing alternatives like Vivaldi’s side panel, Opera’s sidebar extensions, or even a return to Firefox. The outcry follows a pattern. When Microsoft removed the ability to disable the sidebar via group policy in Edge 121, enterprise admins pushed back so strongly that the company restored the policy within a month. But this time the removal appears definitive; no group policy will keep user pins alive because the underlying plumbing is being stripped from the codebase.

Why Microsoft Is Making This Move Now

Industry analysts see the retirement as the intersection of several pressures. First, user-pinned apps created a support nightmare. Each pinned page operated as a mini-browser, inheriting the quirks of the host website. When sites like Instagram or Slack changed their layout APIs, pinned instances often broke, generating support tickets Microsoft considered disproportionate to the feature’s usage. Second, the maintenance cost mounts with every Chromium update. Google’s upstream changes to the WebView2 component—which also powers Microsoft 365 apps and Windows UI elements—forced frequent, unplanned revisions to the sidebar’s sandbox.

Third, and most cynical, is the AI race. Microsoft has invested over $13 billion in OpenAI and needs Copilot usage metrics to justify that spend to shareholders. By occupying the sidebar with Copilot by default—and removing user ability to pin competing AI tools such as ChatGPT or Claude—Microsoft tilts the playing field. It’s a repeat of the browser ballot-era strategies, but this time conducted through UI design rather than operating system bundling.

The ongoing antitrust scrutiny in the European Union may complicate things. Edge already faces watchful eyes over its default status in Windows. Sacrificing the user-pin feature while promoting an in-house assistant could draw new complaints from competitors like Opera or Brave, who might argue that Edge is removing existing functionality to hobble rival services. No formal investigation has been announced, but legal experts note that under the Digital Markets Act, gatekeepers must not impose unfair conditions or degrade user experience to favor their own services.

What Users Stand to Lose

The practical impact extends beyond convenience. For workflows that relied on persistent sidebar apps—customer support agents referencing multiple knowledge bases, developers keeping documentation open beside their IDEs, streamers monitoring chat while broadcasting—the removal forces a shift to less elegant solutions. Vertical tabs can simulate some of this by keeping sites always visible, but they lack the dockside persistence and compact UI of the sidebar. Placing two browser windows side by side is an option, but it doubles the menu bar footprint and doesn’t feel integrated.

One affected user, a technical writer who pinned a glossary tool and a note-taking app in Edge’s sidebar, told the community that “this is the first time I’m seriously looking at Vivaldi.” Vivaldi’s sidebar not only supports web panels but also allows users to set custom intervals for automatic refreshing—a feature Edge’s sidebar never offered. For those heavily invested in Microsoft’s ecosystem, the switch may involve real friction, as Edge syncs passwords and bookmarks via Microsoft Account, while migrating to another Chromium browser remains relatively painless.

The Silver Lining: Edge Isn’t Unique in Shrinking

It’s worth noting that browser vendors across the board are reexamining sidebar features. Chrome’s experimental Side Panel API, launched in 2023, allows extensions to display persistent UI, but Google has been cautious, limiting its scope to reading list and bookmarks initially. Firefox completely removed its own sidebar experiment in 2024, citing low engagement. Opera’s sidebar remains customizable but has pivoted toward integrating generative AI assistants and messaging apps, rather than serving as an open canvas.

Edge’s move may simply be an acceleration of an industry trend: side panels that started as multitasking tools are being retooled as monetization surfaces. The difference is that Edge is the only major browser to have offered a sidebar intuitive enough for casual users, and now it’s taking it away.

Copilot’s Growing Footprint

Retiring user pins also clears the path for Copilot’s expanding feature set. Microsoft recently demonstrated a “Copilot Vision” mode that can watch a user’s screen and offer contextual suggestions, which would likely anchor in the sidebar. A leaked roadmap mentions “Sidebar Actions,” a feature that would let websites push tasks like “Add to Calendar” or “Share on LinkedIn” directly into the Copilot panel. Third-party developer support for these actions is promised, but it remains to be seen whether that will materialize or remain a Microsoft-only affair.

By consolidating the sidebar around Copilot, Microsoft gains a powerful distribution vector. Every Edge user—estimated at over 300 million monthly active devices—will see the AI assistant persistently. The design effectively turns Copilot from an optional chat tool into a foundational UI element, much as the Start menu became the gateway to Windows. That kind of reach is invaluable for improving the assistant’s underlying models through usage data, creating a feedback loop that could make Copilot genuinely more capable over time.

Workarounds and the Path Forward

For those determined to resist, workarounds exist. The most straightforward is to install a sidebar extension that mimics the lost functionality. Extensions like “Sidebar for Edge & YouTube” from the Chrome Web Store allow adding URLs to a side panel, albeit without the deep integration that native pinned apps provided. Browser groups and workspaces can recreate some of the multitasking by keeping frequently used tabs together, but they lack the persistent glanceability.

A more radical alternative is to switch to Edge Beta or Dev channels, which may retain the old sidebar code slightly longer. Historically, feature removals are rolled to stable versions first, and insider builds sometimes hold onto deprecated features for one or two releases. However, that’s a temporary reprieve at best. Ultimately, the change will reach all users.

The decision also underscores a broader shift in how Microsoft views Edge. Once positioned as the “browser for business,” with IT controls and productivity features, Edge is increasingly marketed as a consumer AI hub. The sidebar’s transformation aligns with that pivot: it’s no longer a tool for getting work done across services, but a showroom for Microsoft’s own intelligence layer.

Conclusion: A Leaner Browser or a Walled Garden?

By removing user-pinned apps while doubling down on Copilot, Edge is ostensibly addressing bloat—but the move will fuel accusations that it’s simply exchanging one user’s bloat for another’s billboard. The sidebar’s original promise was freedom: any site, any app, always one click away. That promise is being replaced with a walled garden where only Microsoft’s assistant and shopping tools are welcome.

For the average user who never strayed beyond the defaults, the change will be invisible. For the power user who crafted a toolbar of hand-picked sites, it’s a painful downgrade. And for competitors watching Microsoft’s every regulatory move, it’s Exhibit A in the argument that platform owners shouldn’t be allowed to remove functionality that benefits third parties.

Windows Central has not yet detailed the exact version of Edge in which this change will land, but sources indicate the stable rollout will begin in July 2026. Users who wish to preserve their pinned apps should avoid updating enthusiastically and begin exploring alternatives. The browser landscape is rich with options—the challenge now is whether Edge still counts as one of them for anyone who valued choice.