Perplexity AI in Firefox: a complete guide to its use and advantages

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La Artificial intelligence is no longer something foreign to web browsingIt's creeping into virtually all modern browsers, and Firefox is no exception. Mozilla has decided to natively integrate Perplexity, one of the most popular AI assistants of the moment, as a search engine within the desktop browser itself.

This new feature not only changes how we search, but also How we look up information, verify sources, and organize our work onlineFrom conversational responses with quotes, to separate profiles for work and personal life, to the option of disabling or even deleting Perplexity if you're not convinced: Firefox offers plenty of control so that each user can tailor the experience to their liking.

What is Perplexity and why does Mozilla integrate it into Firefox?

Perplexity is a search engine with artificial intelligence It answers your questions in a conversational format, rather than just displaying a list of links. The key is that, while generating an answer, it includes citations to the sources it has used, so you can verify the origin of the information with a single click.

Mozilla has decided to integrate Perplexity directly into Firefox because Users increasingly demand quick and contextualized answerswithout having to open ten tabs to understand a topic. Instead of developing its own system from scratch, the company opts to rely on a service already established in the market, a logical move after the internal restructurings and resource adjustments of recent years.

Within the Firefox address bar, Perplexity appears as an additional search engineIt's on par with Google, Bing, or DuckDuckGo. It doesn't replace any of them; it simply adds to the list as an alternative. The user chooses at any given time whether to use the classic link search engine or an AI-generated answer with quotes.

For Mozilla, this movement is also a form of to remain competitive against other browsers that have already embraced AI: Edge with Copilot, Opera with Aria, or Brave with Leo. Firefox retains its own rendering engine (Gecko) instead of using Chromium, allowing it to make independent technical decisions and, in this case, integrate Perplexity as part of its differentiated offering.

The integration began as pilot test in specific markets Around mid-2025, initially limited to a small group of users and countries, Mozilla has launched the feature after testing its reception and refining details. They have now moved to a full-scale rollout for the desktop version of Firefox, with the mobile version planned for a later date.

How to use Perplexity AI directly from Firefox

Using Perplexity in Firefox is surprisingly simple because It behaves like just another search engine within the browserYou don't need to install any unusual extensions or open additional tabs with the official Perplexity website if you don't want to.

Access is gained from the address bar itself. By clicking on the down arrow next to the search iconThe list of available search engines will appear. There you'll see Perplexity alongside the other search engines you have configured. Simply select it to send that specific query to the AI ​​engine.

Once you've chosen Perplexity, all you have to do is Write your question or request directly in the address bar.You can treat it like a chatbot: ask complex questions, request comparisons, summaries, or explanations. The response will appear in a conversational format and will include citations of the sources used to generate the content.

If you get used to this way of working, you can take it a step further and set Perplexity as the default search engineFrom the Firefox menu, by going to Settings and then to the Search section, you can set it as the main option, so that any query you make from the search bar will go to Perplexity unless you specify otherwise.

For many users who already use the Perplexity app or official websiteThis integration implies a clear reduction of clicks and context changesThere's no need to jump between tabs or applications anymore: AI is integrated into the natural navigation flow, which especially speeds up quick queries or preliminary documentation tasks.

How to disable or remove Perplexity from Firefox if you don't want to use it

Not everyone is thrilled about artificial intelligence becoming so prevalent. Some users believe that These assistants are unnecessary in the browser and prefer to maintain a more classic environment, or simply do not want its use suggested in everyday life.

Mozilla has taken this into account and offers the possibility of disable Perplexity as a search engine and even remove it from the list if you prefer. Everything is controlled from Firefox's own settings, without having to touch anything external.

To deactivate it, the process is very straightforward: first you click on the button with three horizontal lines (The main menu) is located in the upper right corner of the window. In the drop-down menu, choose Settings, and on the new screen, go to the Search section, which you will see in the left panel.

In that panel you will find the section called Search shortcutsA table will appear with all the configured engines. Simply uncheck the box next to the "Perplexity" entry. This will remove the engine from the list of options when you open the address bar, although the configuration will be saved in case you want to reactivate it later by checking the box again.

If your intention is completely remove Perplexity from FirefoxIt's also possible to remove Perplexity from the list of search engines without leaving a trace in the table. In the same Search Shortcuts section, select the row where Perplexity appears and click the Delete button below it. This will remove it from the list of search engines. If you change your mind, you'll have to add it back later using Mozilla's method (for example, by restoring default search engines or reinstalling the browser).

Availability, platforms, and integration roadmap

Integrating Perplexity into Firefox It has started with the desktop version (Windows, macOS, and Linux). After a testing period in selected countries, Mozilla has confirmed that the option is being rolled out globally to more users, always within the desktop version of Firefox.

Regarding mobile phones, the company has already announced that Perplexity's arrival on Firefox for Android and iOS It's in the roadmap, but a specific date hasn't been set yet. The idea is to offer the same conversational search experience with dating apps on your phone as well, maintaining consistency between what you do on your laptop or desktop and what you do on the go.

It is worth remembering that this integration It does not replace traditional engines.Instead, it's added as another option. Google, Bing, DuckDuckGo, and other alternatives are still available, and users can freely choose which one to use: with a single click in the address bar or by setting a default search engine.

Mozilla has also wanted to make it clear that Perplexity does not sell or share personal data.This aligns with Firefox's image as a privacy-focused browser. However, it's important to note that requests are processed on Perplexity's servers, not your computer, so you should still follow standard best practices when sending sensitive information.

In the broader digital ecosystem, this move reinforces the trend towards Look for answers instead of just linksMore and more work and communication tools are incorporating AI, and the browser is a key point in that transition, because it is where much of the professional user's digital journey begins.

Basic technical operation and resource consumption

From the user's point of view, Perplexity works as if it were a classic search engine integrated into FirefoxThe difference lies in the layer of artificial intelligence that runs in the cloud, responsible for interpreting your query, searching for relevant information, and synthesizing it with its corresponding citations.

A common question is whether this implies a extra resource consumption on the computer itselfThe answer is no, not significantly: Firefox doesn't run the AI ​​models locally, but instead sends the request to Perplexity's servers and receives the processed response back. The impact is more noticeable in network traffic than in your computer's CPU or memory usage.

This means that, for all practical purposes, Perplexity behaves like any other search engine From your browser. No separate floating assistant opens, and no new AI process is launched on your system. Everything is routed through Perplexity's infrastructure, just like when you do a regular search and Google's server does all the work.

In everyday life, what you'll see is a conversational response interface accompanied by a list of citations to the sources used: articles, official websites, reports, etc. This combination of synthesis plus immediate verification is what differentiates Perplexity from a simple generic chat without references.

Another advantage of this model is that improvements in AI models and indexing These changes are applied server-side, so you don't need to constantly update your browser to see improvements in response quality. However, it's advisable to keep Firefox updated to the latest version to access all the configuration and security options associated with the integration.

Firefox profiles and other new features accompanying Perplexity

Perplexity's arrival in Firefox isn't the only change. In this same wave of updates, Mozilla has also broadly activated... profile management in Firefox, a long-requested feature that allows separate browsing environments within the same browser.

With profiles, you can have “parallel navigators” For different contexts: one for work, another for personal use, another for testing, etc. Each profile can have its own extensions, passwords, history, bookmarks, and tabs, completely isolated from the others. There's no need to create separate email accounts or deal with multiple browsers.

A clear example is that of a professional firm: separate profiles can be created by area (Tax, Labor, Commercial) or by client, minimizing the risk of mixing sensitive credentials or browsing historyThis makes particular sense when Perplexity is used for preliminary queries and the results are then transferred to internal files or corporate tools.

Another novelty is the Integrated visual search with Google Lens For those who use Google as their default search engine. From the desktop, by right-clicking on an image, you can search for related information, extract or translate text, identify similar products, locate places, or recognize objects without needing to save the image or describe it manually.

Mozilla is testing this feature gradually and Its deployment will be decided based on user feedback.In work scenarios, visual search can facilitate tasks such as identifying official forms, locating original versions of documents or verifying the origin of certain graphic content, always preserving the link to the official source (BOE, ministries, agencies, etc.).

Advantages of Perplexity in Firefox for users and businesses

The main advantage of using Perplexity in Firefox is that You go from searching for links to searching for traceable answersInstead of opening multiple pages and reading them all to draw your own conclusions, you receive a summary accompanied by the sources so you can verify it immediately.

For founders, technical teams, or professional firms, this means a significant time saving in research and documentationTypical queries such as differences between contractual figures, updates in labor regulations or deadlines of public bodies can be addressed much faster, always with the option of validating each appointment on their official page.

From a privacy standpoint, Mozilla insists that The user decides when to use PerplexityIt's not a mandatory feature: you can choose traditional search engines, switch between them depending on the type of search, or disable it completely. Furthermore, Perplexity's commitment to not selling or sharing personal data aligns with Firefox's philosophy.

In organizations that are adopting private AI environments (such as agents integrated into Slack or Teams), having a search engine with quoted answers in the browser itself helps improve the quality of the material that is then shared in internal channels or linked to a CRM, file or specific case.

There is also an impact at the level of individual productivity: Fewer tab switches and less need to copy and paste informationBy having a structured response with links to sources, the user can focus on analyzing, deciding, and documenting, instead of investing time in the phase of collecting scattered data.

Quick guide to responsible use in professional environments

For IT or compliance departments, the appearance of Perplexity within Firefox necessitates defining clear usage policiesEnabling the function is not enough; it is advisable to establish criteria on what type of queries are allowed and how the results are integrated into internal workflows.

A reasonable practice is to limit Perplexity to information and support consultationsalways requiring subsequent validation. In other words, it can be used for orientation, to obtain an initial overview, or to locate relevant regulations, but it should never replace official databases or subscriptions to legal or accounting documentation.

It is also worth emphasizing that users Click on the quotes and verify the primary sources (BOE, DOUE, AEAT, INE, ministries, regulatory bodies) before making important decisions or preparing reports that will be shared with clients or third parties.

Another key point is logging: organizations can establish that, each time Perplexity is used for a query that affects a file or project, save the URLs of the cited sources in the document management system, in the CRM or in the corresponding Slack/Teams channel, so that there is a clear trace of where the information came from.

Finally, it is essential to maintain a strict policy of Do not enter personal data or customer identifiers in the queriesInstead, it is recommended to formulate the questions in an abstract way (“SME in sector X”, “case with these general characteristics”), thus protecting confidentiality and complying with the GDPR and the organization's internal policies.

Recommended profiles and work organization with Firefox

Taking advantage of the combination of Perplexity and profiles in Firefox involves design a navigation structure adapted to the actual workIt's not just about separating "Work" and "Personal," but about going a step further according to the needs of each company or professional.

For example, a law firm can create a Job Profile – Tax with specific extensions (corporate password manager, advanced PDF reader, tools for capturing citations and references). In this context, Perplexity can be used for queries on tax regulations, changes in AEAT deadlines, or general interpretation of certain concepts, always validating against official sources.

In parallel, a Job profile – Employment It could focus on electronic signature tools, legal note managers, or extensions for working with agreements and case law. Again, Perplexity would act as an assistant to clarify initial doubts about contract types, minimum wage, bonuses, or procedures, before consulting specialized databases.

Finally, maintain a Separate Personal Profile Without access to corporate bookmarks or passwords, it helps reduce the risk of mixing contexts: less likelihood of sending customer information from personal accounts, installing dubious extensions in the work environment, or crossing browsing histories that should remain isolated.

In all these profiles, Perplexity integration can be configured differently: enabled in some, disabled in others, or limited to very specific cases. This flexibility is part of Firefox's added value for organizations that want to balance innovation and control.

Impact on SEO, research, and how information is consumed

The way Perplexity presents the answers, with summary and key quotesIt also changes how users click on results. Some traffic shifts from directly searching the first link to verifying the sources mentioned in the AI's response.

For marketing teams and content managers, this means that to have clear, reliable and well-structured information This becomes even more important on corporate websites. If a website is cited by Perplexity as a relevant source, users are more likely to click through to check the details, download a resource, or verify the exact data.

In the field of legal and accounting research, Perplexity's AI can streamline the initial stages of information gathering: quickly identify which standards, reports, or statistics are relevant For a specific topic, before dedicating time to in-depth reading. However, always keeping in mind that AI does not replace official sources or expert interpretation.

Visual search, meanwhile, opens the door to new ways of locating documents and referencesA practical example: starting with a screenshot of a form or notification and using Google Lens from Firefox to find the official document it comes from, or updated versions of it, maintaining traceability to the original source.

Taken together, these tools encourage teams to adapt their internal guidelines: Always document what source was usedAttach the original links in reports and communications, and teach professionals to live with AI as support, not as a substitute for their own judgment or the current regulatory framework.

Risks, limitations and best practices for using AI in the browser

However advanced Perplexity's AI may be, He is neither infallible nor omniscientTheir answers may be incomplete, not reflect the latest regulatory updates, or, at times, offer questionable interpretations of certain legal, technical, or financial nuances.

One of the main risks is becoming overconfident and treat Perplexity's response as if it were a final rulingThe tool is intended to guide and accelerate the search, not to replace direct consultation of official regulations, specialized databases, or qualified professional judgment.

It is also essential to assess the aspect of sovereignty and data protectionAlthough Perplexity and Mozilla emphasize their privacy commitments, each organization should review whether its approach to phrasing inquiries complies with the GDPR and its internal policies. The general recommendation is to always anonymize information and avoid mentioning proper names, identifiers, or sensitive details.

For mobile devices, the option to use Perplexity from Firefox is still under development. This encourages... plan a phased adoption: start with the desktop, train users, establish clear rules of use and, when the mobile version arrives, extend the practice with a solid foundation already established.

If managed well, the integration of Perplexity into Firefox can become one more piece within an ecosystem of secure and efficient toolswhere AI helps increase speed without compromising rigor or confidentiality. The key is to always maintain control: deciding when to use it, how to validate its output, and its place within internal processes.

The arrival of Perplexity in Firefox reflects a shift in how we browse: searches become dialogues with an assistant that cites its sources, profiles allow us to separate digital worlds, and visual search adds new ways to locate information; combined with good privacy and verification practices, these features offer a more powerful and flexible browser, but also require users to know how to use them wisely.